PSP all the way.. the DS is cool but in a completely different way than the PSP and as far as uses go the PSP dominates the DS. Plus the PSP can watch movies when will they invent movies on cartridge? NEVER!
look its the PSP by far (you can go on the internt,mp3(music),mp4(vidios),pictures,beter graphics,cheper games(if you go to Argos),you can give your friends free pictures from your PSP,you can make it into a camra or video camera and I have a PSP and DS and the DS is crap
Well DS is touch screen and portable and it has great games.I also think PSP is good but you need a TV to work it but you can play music DVDS and many other great stuff.
I have to say DS ='[ and I'm not happy about this because i am a HUGE sony fan. But the psp has the potential because the graphics are great but the DS had more games. I wish the PSP did have more games because it would be a lot better system.