Who he? Devine was most recently lead designer at Ensemble Studios, which developed Halo Wars for Microsoft.
He was also one of the co-founders of Trilobite back in the early 1990s, resulting in games like The 7th Guest and 11th Hour. A proper game development luminary, in other words.
And now he's working on iPhone stuff. For Apple.
So far, the company has only self-published one iPhone game, Texas Hold'em, while publicly maintaining that it has no plans to increase its first-party roadmap.
If that's changed and Devine's hiring may tie in with other recent poachings, like the senior director of strategy for Xbox then we may find out tonight: Devine has been tweeting that he's working on stuff for WWDC.