The DS may be getting all the attention but there are still gems to be found on the GBA. TMNT (Teenage Mutant Ninja Turtles) for the GBA is one such gem, it scores a rating of 8.1 from Gamespot the best score by far for any of console versions.
Wii - 6
Gamecube - 6.6
DS - 3.1
PC - 6.4
PS2 - 6.6
PSP - 3.4
XBox 360 - 6.4

From the Gamespot review of TMNT for GBA:
TMNT on the Game Boy Advance is a rousing beat-'em-up and a shining example of a movie-based game done right. The fisticuffs are fun, the presentation is sharp, and the story stays true to the comics and the recent movie without coming across as contrived. It won't take you hours and hours to finish the game for the first time, but the whole experience is so sweet that you'll want to do it all over again every now and then.
Source: Gamespot
I play my Gameboy a lot less now I have the DS but it's still going to be really sad to see the end of the Gameboy Advance.
"We think that Game Boy Advance certainly has at least one more holiday season left in it. For us, it continues to be a great stepping stone for five-, six-, seven-year-old consumers to have their first great handheld gaming experience and then transition right into DS," Fils-Aime told the Reuters Media Summit in New York.
Source: Reuters
Buena Vista Games has announced a number of games based on Disney Channel shows to be released for this holiday season.
American Dragon: Jake Long, Attack of the Dark Dragon
Based on the popular Disney Channel show, "American Dragon: Jake Long," and developed by WayForward, American Dragon: Attack of the Dark Dragon for the Nintendo DS lets players take control of Jake, who must punch and kick his way through an onslaught of villains to save girlfriend Rose from the Dark Dragon. American Dragon: Attack of the Dark Dragon boasts five distinct worlds with more than 20 levels. When Jake transforms into the America Dragon, players can release dragon fire, perform jump attacks, whip with a tail swipe and take flight in 3D with up to four friends in wireless mode.
American Dragon: Jake Long, Rise of the Huntsclan
In American Dragon: Jake Long, Rise of the Huntsclan for the Game Boy Advance, players must use kung-fu action and dragon fire to stop the evil Huntsman from destroying New York City. This fast-paced, action-adventure game from developer WayForward has more than 20 levels with battles at every turn. The game also features a flying wireless mode for up to four players.
Disney's Hannah Montana
Thirteen-year-old Miley Stewart lives a double life as girl-next-door and pop sensation in the Disney Channel original show, "Hannah Montana." In Disney's Hannah Montana for the Nintendo DS, developed by DC Studios, someone is threatening to reveal Miley's secret and it's up to the player to determine who it is. Playing as Miley, gamers must use spy skills and gadgetry to investigate their school, the boardwalk, stadium and beach to uncover hidden clues and solve the mystery. Players can interact with their favorite characters from the show using a branching dialogue system while exploring familiar "Hannah Montana" environments, and meet hilarious new characters along the way. Mini-games include a wireless two-player skateboard, rollerblade and scooter challenge and a mode that enables players to share clothes in Miley's secret wardrobe with others via wireless connection.
The Suite Life of Zack & Cody: Tipton Caper
The Suite Life of Zack & Cody: Tipton Caper for the Game Boy Advance takes players on a daring adventure with the 12-year-old twins at the Tipton Hotel. The boys are on a mission�crawling, climbing, jumping, racing and wearing disguises to conquer enemy forces, when they discover a plot to steal the crown from a Teen Beauty Pageant being held at the hotel. Players control the twins independently or team up in fun-filled missions to ensure the thief is stopped and the night is a success, all while trying not to get caught.
That's So Raven: Psychic on the Scene
Developed by Handheld Games, That's So Raven: Psychic on the Scene challenges players to solve a hare-brained mystery brought on by one of Raven's psychic visions. Taking the role of Raven or one of her friends, Chelsea or Eddie, players must gather clues to solve the mystery, fix fashion mishaps, save friends and progress through an array of fun puzzle challenges - all in 3D and for the first time ever on the Nintendo DS. Players can mix and match more than 40 different outfits, hairstyles and disguises, create custom clothing styles that can be shared over the wireless connection, sew new garments, and take the driver's seat in several exciting mini-games.
Source: http://Buena Vista Games
UK based artist Jeremy Gibbs has turned a broken Gameboy into art. His creation the Qee sells for more than $300.

Source: I4U News
The Nintendo DS is clearly dominating the portable gaming market in Japan. The PSP is lagging far behind, not doing much better than the Gameboy which is still a strong console - Mother for the GBA outsold the strongest PSP title, SD Gundam G Generation Portable, by over a 100,000 copies.
1. DS New Super Mario Bros - Nintendo - 3,150,716
2. DS Pokemon Diamond / Pearl - Pokemon - 1,586,360
3. DS More Brain Age - Nintendo - 1,570,965
4. DS Brain Age - Nintendo - 919,443
5. DS Animal Crossing - Nintendo - 891,674
6. DS Tetris DS - Nintendo - 851,294
7. DS Final Fantasy III - Square Enix - 771,925
8. DS English Training - Nintendo - 686,212
9. DS Talking DS Cooking Navi - Nintendo - 525,268
10. DS Tamagotchi Corner Shop 2 - Bandai Namco - 519,12711. DS Pokemon Ranger - Pokemon - 434,283
12. DS Mario Kart DS - Nintendo - 364,641
13. GBA Mother 3 - Nintendo - 360,964
14. DS Mario Basketball 3 on 3 - Nintendo - 318,871
15. PSP SD Gundam G Generation Portable - Bandai Namco - 255,493
16. DS Digimon Story - Bandai Namco - 204,755
17. GBA Rhythm Tengoku - Nintendo - 172,710
18. DS Starfy 4 - Nintendo - 158,856
19. PSP Jikkyou Powerful Pro Baseball Portable - Konami - 149,190
20. DS Nintendogs - Nintendo - 144,38521. PSP Dragonball Z - Bandai Namco - 139,765
22. DS Tingle RPG - Nintendo - 136,670
23. DS Sudoku - Hudson - 136,236
24. PSP LocoRoco - SCE - 124,970
25. DS Naruto 4 DS - Takara Tomy - 116,243
26. PSP Tekken Dark Resurrection - Bandai Namco - 112,197
27. PSP DQ&FF in Itadaki Street Portable - Square Enix - 109,859
28. PSP Derby Stallion P - Enterbrain - 105,708
29. PSP Monster Hunter Portable - Capcom - 104,680
30. DS Kanji-input Easy Dictionary - Nintendo - 103,23831. PSP Kazuo (aka Sudoku) - SCE - 102,684
32. DS Children of Mana - Square Enix - 99,801
33. DS DS Seminar: Kanji Power - TDK Core - 95,579
34. PSP My Summer Vacation Portable - SCE - 94,978
35. GBA Famicom Mini Super Mario Brothers - Nintendo - 94,528
36. DS Clubhouse Games - Nintendo - 93,917
37. PSP Tales of Phantasia Full Voice - Bandai Namco - 93,351
38. DS Megaman ZX - Capcom - 91,846
39. DS Mushiking 2 - Sega - 89,609
40. DS Rune Factory - MMV - 87,96541. DS Metroid Prime Hunters - Nintendo - 87,542
42. DS Big Brain Academy - Nintendo - 87,320
43. DS Teadog's Room DS - MTO - 82,889
44. DS Phoenix Wright (best price) - Capcom - 81,765
45. PSP Brain Trainer Portable 2 - Sega - 81,571
46. DS Project Hacker - Nintendo - 81,220
47. DS Starfox Command - Nintendo - 80,483
48. DS Power Pro-kun's DS Koushien - Konami - 79,992
49. DS Naruto RPG 3 - Takara Tomy - 77,560
50. DS Kirarin Revolution: Idol Audition - Konami - 74,89151. GBA Mother 1+2 (value selection) - Nintendo - 74,541
52. PSP Bleach Heat the Soul 3 - SCE - 74,384
53. DS Wario Ware Touched - Nintendo - 74,165
54. PSP Monster Hunter Portable (the best) - Capcom - 73,332
55. DS Tamagotchi Corner Shop - Bandai Namco - 73,040
56. PSP Aha Taiken - Sega - 72,827
57. DS Super Mario 64 DS - Nintendo - 68,189
58. DS Kanji Test DS - Rocket Co. - 67,153
59. DS Travel Phrasebook DS 4: America - Nintendo - 66,615
60. PSP Naruto: Narutimate Portable - Bandai Namco - 59,07061. DS Keroro Gunsou - Bandai Namco - 57,603
62. DS Brain Stress count: Head Scan - Sega - 54,780
63. PSP Valkyrie Profile Lenneth - Square Enix - 54,430
64. DS Right Brain Master: Gun Bullet Trainer - Bandai Namco - 54,336
65. GBA Pokemon Emerald - Pokemon - 53,746
66. DS Right Brain Master: Spot the Difference - Bandai Namco - 52,992
67. PSP Talkman - SCE - 52,135
68. DS Mario & Luigi RPG 2 - Nintendo - 51,379
69. GBA Crayon Shin-chan - Banpresto - 51,280
70. PSP Valhalla Knights - MMV - 49,10771. PSP Everybody's Gold Portable (the best) - SCE - 47,068
72. DS Magical Vacation: When the 5 Stars Align - Nintendo - 45,713
73. PSP Pachislot! Fist of the North Star SE - Sega - 44,951
74. PSP Evangelion 2: Man-made World another cases - Bandai Namco - 44,922
75. PSP Ridge Racers 2 - Bandai Namco - 44,812
76. DS Travel Phrasebook DS 3: S.Korea - Nintendo - 44,750
77. DS Dragonball Z - Bandai Namco - 44,570
78. DS San-X Land - MTO - 44,349
79. PSP Dokodemo Issho: Let's School! - SCE - 44,229
80. PSP Goku Makaimura - Capcom - 43,87581. DS Turn! Connect! Touch Panic - Nintendo - 43,730
82. DS Giant Mecha MG - Nintendo - 43,397
83. GBA Pokemon Fire Red / Leaf Green - Pokemon - 42,991
84. DS Cooking Mama - Taito - 42,518
85. DS Pachislot! Fist of the North Star SE - Sega - 40,073
86. DS IQ Teacher DS - IE Institute - 39,925
87. PSP Shin Sangoku Musou 2nd Evolution - Koei - 39,919
88. PSP Winning Eleven 9 Ubiquitous (the best) - Konami - 39,679
89. PSP Everybody's Map - Zenrin - 39,265
90. DS Pokemon Mysterious Dungeon Blue - Pokemon - 38,55391. DS Travel Phrasebook DS 2: China - Nintendo - 38,377
92. DS Right Brain Kids DS - IE Institute - 37,468
93. PSP Daito Pachislot: Osu Banchou Portable - Daito - 37,420
94. PSP Mah Jong Fight Club (the best) - Konami - 36,975
95. DS Gintama DS - Bandai Namco - 36,883
96. DS Touch! Bomberman Land - Hudson - 36,054
97. DS Simple series 8: The Judge - D3 Publisher - 34,855
98. DS DS Seminar: English Power - TDK Core - 33,805
99. DS Chocodog's Shop - TDK Core - 33,620
100. PSP Taiko Drum Master Portable 2 - Bandai Namco - 33,021
Source: Famitsu via NeoGAF
Why did the Gameboy beat the Gamegear and how did Mario win out over Sonic the Hedgehog and is history set to repeat itself? All these questions seem to be answered in an excellent and insightful article on the Toronto Star website, written by someone who is obviously a long time Nintendo fan:
Game Gear should have kicked the crap out of Nintendo's Gameboy. It came in colour. It had better graphics and a sexier design.
And yet the market — as dictated by millions of video-game addled North American school kids in the mid-`90s — thumbed its nose at Sonic the Hedgehog's bright blue racing ways. We liked pretending to be fat Italian plumbers. We liked saving Princess Peach and we liked doing it on a screen that was two inches tall and two shades of green.
Why?
Two reasons: The Sega tech was ahead of itself. The colour screen killed six batteries in five hours in an era when rechargeables were pre-Lithium-Ion.
Oh, and the Sega guys were pricks.
Their marketing campaigns were smug and superior. Anybody who picked Nintendo over Sega's handheld was either dumb or colourblind.
We didn't like that.
So we stuck with Gameboy.
It looks like Sony is going to repeat Sega's mistakes.
Source: Toronto Star