I've been looking at interviews and videos the entire day. I think he's beta NF, probably ENFj. He has quite a lot of energy on stage. He also said somewhere that when he's at home sitting on the couch, he's very unsure about it, but when he gets on stage, all he wants to do is entertain people. Also, when he was talking with some Fi type bitch, he got over-energetic and seemed like he was totally on drugs. He overcompensated for the lack of response to Fe. I haven't seen INFps doing that. They calm down very fast and quickly go into INFp Ni-mode.

you can judge for yourself:
[youtube]http://www.youtube.com/watch?v=G_NhrdtRzdY[/youtube]

The woman is just eating away the Fe energy. "OKAY. I've never had a Tamagochi." ... And now for Fi - she goes to soft boring voice and quietly says, "Talk me about yourself" And then listening and listening with no expression. It takes him a little while, but then he adjusts himself to deep conversation. Whenever she does anything (says "mhh"), he loses energy again. Then he goes to another attempt for Fe atmosphere with the "yeah, I'm a mut!", but she eats it again and it gets very awkward. Then he becomes entirely Fi and starts describing his motivations and history and such. He has a low energy-level now. Voice is soft, ends of sentences end in weak "...ehhhh....". Bitch woman, made the nice ENFj loose the Fe-mood.