Design Director of the Mac OS User Experience Group, he led what was called the "Mac OS X interface concept project" and directed the design team responsible for the user experience of Mac OS X 10.0 "Cheetah" through Mac OS X 10.3 "Panther," which included the company's first-generation of iLife digital lifestyle applications.
From there he was hired away by Microsoft to create -- wait for it! -- Vista. More specifically, AERO Glass, Flip3D, and Windows Calendar. Redmond start your copiers, indeed.
So what do you get if you copy a copy? Aside from artifacts and banding galore, RIM's new VP of user experience, it seems. There's only one problem with this, of course, and it should be obvious to RIM or to anyone who's seen Vista or the Star Wars prequels.
Great artists need great editors. The best kindergarten teachers know when to pull the paper away from the kids. Steve Jobs is a great editor, a great kindergarten teacher. Word is he would scrutinize the UI down to the pixel level.
Hiring the guy who was already hired away by the other guy doesn't give you the iPhone. It gives you the Storm. And RIM already learned how that worked out. Vista on the Storm... Good luck with that.
If you'd like a better idea, instead of trying to get the guy Microsoft got from Apple, and trying to dupe the dupe that is Vista, find someone new. Find something new...