Well I doubt it would do anything at all, see the virus would be on the memory stick as the only way to get virus is by transfering a virus from computer to memory stick. And it wouldn't be viewable to the psp. It would probally be shown as currupted data. The thing is, the psp runs on a different system then Windows so the virus is designed to Windows so it wouldn't know what to do therefore the virus wouldn't affect the system would it. Of course if it was a MAC virus as I know the psp is MAC (I think), Maybe it might just delete you whole memory stick as most viruses delete things. Maybe hacker* will make one on the psp so when you go through the internet with your psp, and go on that site, it give you the virus bricking your psp. Well thats what I thought.
Keywords-
Hacker* = Geek who is bored so he attacks another computer.
There was one back when mph released the downgrader, the 'overflow.tif' used to downgrade normally was replaced with a psp bricker, when you go to photo it would delete 4 critical flash files rendering your psp useless, just be sure where you download your psp files from, psp-hacks, pspupdates, ps2nfo, stuff like that is good, watch this video: http://www.psp-hacks.com/file/132
