Hey, my cousins just bought a new PSP last week at BestBuy with firmware 2.60 and they were wondering if they could get like emulators and homebrew applications on it while keeping all the new features of official firmware. So by what I have read it seems that the best custom firmware would be 3.40 OE-A or maybe the new 3.51 M33. So I was wondering how risky it would be to put one of these custom firmware on their PSP? And if it were to screw up would they be able to return it like that? Would they notice at BestBuy that they tried custom firmware? Or if it did work but they then decided to put official firmware on it, would it be possible? With all this stuff I have been reading about, I am also thinking of buying a used one to try this stuff on for myself .