Haha, well I own a DS and 2 PSP, after getting a new PC I will try to buy old PSP chips to build a portable mini PC with PSP hardware.
The PSP is just so much better when it comes to graphics etc, most games for DS are kids-stuff and its just annoying with those pixelated graphics (Compare: Burnout Legends (PSP vs. DS) for example).
Would be cool if we get a top-down GTA for DS tho. The graphics and gameplay should be cool then