MAD Cow thing is very fake. Sony blocked almost all ways in via the XMB, I doubt that blurry video maker can manage to find a way to change 1 value in the PSP let alone exploit and install a CFW that quickly from an image file.
There's a jump cut to the UMD in the drive (for no real reason) Also in order to prove his CFW is real he...boots a UMD? Yeah...something we couldn't do with 5.50GEN-D3 or even 6.20...right? If he'd shown a game booting from memory stick it would be a possibility.
MORE FAKE!!!
When he loads up that "Loading screen" it has obviously been made on a computer and put in, the video is far too clear and the movement causes no defocussing(unlike earlier in the video where autofocus was going crazy. Also the waves freeze before it goes into there and he starts his robot, computer editted movement.