I'm curious as to those who have installed it, have you had any problems on your PSP? I have been reading the comments and it seems that some give it the green light and others don't. PSP - 1000 users complained. PSP Slim users were more for the green light and... PSP - 3000 users can't install GEN. I have a Slim and running 5.50 GEN-B and it works pretty good. The memory stick even loads everything with amazing speed, and it's not an official Sony one either.