I don't know whether he is for sure, but I have noticed that he tweets and blogs (and sometimes podcasts) throughout the day. And he's clearly being mentored by

I don't know whether he is for sure, but I have noticed that he tweets and blogs (and sometimes podcasts) throughout the day. And he's clearly being mentored by or adopting Gruber's blogging and advertisement style. If his main effort is, at this time, programming, I bet it won't be for long. He's clearly trying to build a Gruber-esque personal brand.