Ok, just too lazy to check myself.

However, with the massive third party support for DS, how much does Nintendo still develop for it? Has it shifted its focus to Wii? Does it still need to develop for DS?

Yep I also notice this I was expecting NSMB2 but it never came the last good first party I play on the ds was zelda but they have also have other games like advance wars.

So basically: "Are they still supporting the fastest-selling game system ever made, which is annihilating all competition and even outselling their wildly popular console by 100,000 a week?"

A few weeks ago they said they were shifting resources to DS. They are still gonna support it though, just not as much. There is a new Fire Emblem on the way and another Kirby game may be appearing and there are going to be a few unannounced titles in the works yet. Don't worry DS support is still strong just not as strong.

There's a few known Nintendo-made games still coming for the DS (like the upcoming Fire Emlem game, Dragon of Darkness and Sword of Light, assuming it's not canceled or anything). But their primary focus right now is definitely the Wii.

 Lol I was gonna say something like that. :p

Can anybody please tell me which had better 3rd party support the gameboy advance or the ds?

are you serious? yes of course they are still develop for the ds wait until e3 nintend will reveal a lot of games for the ds

From their press site they add only:

04/20/08 Pok�mon� Mystery Dungeon: Explorers of Time DS
04/20/08 Pok�mon� Mystery Dungeon: Explorers of Darkness DS
05/05/08 Crosswords DS� DS