He's one of the developers of Birdhouse, which he started as a side project from doing Hollywood VFX work. Now he's working on making these kinds of promotional videos full time — he's mentioned that he's done internal stuff for companies, and he just published a new one for an iPad app:
http://www.youtube.com/watch?v=v2vpvEDS00oY'all should hire him, he's the new Stan Freberg.