I was just looking around on the internet for PSP videos and found this really odd video. It doesn't look faked, either. I don't see any jump cuts. I wouldn't consider it to be anything we could use though.
http://media.putfile.com/psp-all-firmware-HACK
If you notice, when he goes into the video section, for a split second there are two video files, then 1 disappears and the other displays its info. I find this VERY interesting...he states at the end that he is going to show the hidden files that make it work, but it freezes up and he just gets lazy and doesn't decide to redo it.