I'm kind of interested in it. The lack of UMD is worrying though when it comes to game prices and such, but that should help it's size and battery life.
However, the biggest problem with it would have to be the price. If I had the money, I'd much rather opt to spend $150-170 (whatever the standalone and bundle prices are) of a previous PSP instead.
Hacking it is also something to look at. Not necessarily for stealing new PSP games, but I think that having a portable emulator would make for a great companion on the Go(!). I wonder how long it'll take the modding community to crack the PSP Go.







