leo-j on 25 July 2009
You cannot install a game from the UMD to the PSP (only certain games, but you still need the UMD to play it)
Dsi doesnt play GBA games, but it has a better menu, and plays music files along with other extra features including a memory cad slot, a camera, and dsi ware store.
Also you can play every game out whether it be digital or UMD on the PSP right now.
mM
