yeh, he sure knows what hes doing, also that guitar that he has isnt a steve vai signature, its actually the real deal about $3k US also seen he has a 52 telecaster (love the tone he gets from that)
check this one out
http://youtube.com/watch?v=fsV0Mvy4no4
still cant believe hes 16, his compositions are top notch.
going by one of his latest clips he shows an inset of him actually playing the bass and drums to his songs also.
oh and i (mainly) play bass, i have a 5 string washburn (RB2502), gt6-b, 1100w head + cab (tube pre-amp)