i think there is some that use the camera but they might be marketplace games...

the onlything that looks good about the dsi imo is the dsi ware, and maybe the music player but i can already play music on my R4 but it dont matter cause i got an itouch...

yea i think the dsi is pretty useless if u have a flashcart because on a flashcart u can play both music and movies (and mp3 format too which dsi cant), so making sd slot completly useless, i dont like the cameras in general (more of oppinion but still), and lastly i would never buy ne games on the dsware because i can just dl free games over them = /