I saw screens from looking around and both the DS and PSP has a lot of support. The DS is showing a lot more in terms of games though with Metroid, a new not stupid 2-D and 3-D mixed Super Mario Bros., Mario 64x4, Sonic DS, etc. I mean it, that Super Mario Bros. game looks so amazing. The new realistic Zelda and the GBA Zelda also look amazing. Nintendo is rocking E3 up as far as I can see, but I'm not there, so I can't tell for sure. XD
BTW, any confirmation of the golden Sun on GC rumor?