I don't know about the "strange and difficult" techniques description, because the only things I really saw in there were some tapping sections and then him picking the little sections of string on the headstock a few times (well I actually HEARD that, since the headstock is off camera). The part where he "fans" his fingers is just like finger strumming except you spread your fingers so it makes a multi-picking sound instead of just a single pick, and the rest of the solo is just scales and a few power chords. But it sounds pretty damn cool. I bet that guitar was out of tune by the end, Starts NEVER stay in tune
And just to go along with it, check out this guitar:
Doesn't look playable the way the strings are, but would be a cool art piece to hang in a music room.