I met him when he was doing a DARPA Grand Challenge vehicle in 2004. He was an undergrad at UC Berkeley then, was doing the self-driving motorcycle, and had a successful startup selling a large folding tablet computer for viewing engineering drawings at construction sites. He does seem to get a lot done.
Clearly he is a brilliant man. Too bad that he got so greedy. This is doubly sad when he was already a legitimate multimillionaire from his job at Google.