I don't think it's that great just because it's really overshadowed by the d.s the gamesaren't as good and were the d.s has the touch functions the psp is just another handheld
Yet the PSP can play video AND music UMDs while the DS can't.
Don't even bother mentioning UMDs. There are incredibly few movie companies that are willing to make their movie in another format simply to have their movies played on a Video Gaming system as an extra feature. Now, USB, that's where it's at.