I am sure someone smarter and more experiened than I has thought of this but oh well.
Anyway, couldn't we try to use something like the gamesharing feature to start homebrew apps on non-hacked PSPs? Yeah it would probably go away when you turned off your psp, but maybe it is another avenue for hacking the system. Heh, you might even to be able to propogate hacks like a virus this way. Lemme know if I am wrong and be sure to tell me I am a bleeping newb. ;)
Also, i would like to see a program for capturing and permanently saving gameshare demos to memorystick. That would be awesome, to say, have several different tracks and cars of the burnout legends gameshare, or to have demos of Namco Battle permanently stored on your handheld. Anyone have an inkling if this is possible?