Oh. Yeah, it's unclear what happened. Bill Greene reported last week that Pittman had recently tried to commit to Michigan, but was turned down. There are a couple different theories as to why; one is he hasn't passed that Ohio Graduation Test or whatever it's called yet (the same one that tripped up JT Turner for a while a couple years back), and while he has plenty of time to do so, Michigan couldn't take him now because the admissions office is cracking down or whatever, and Pittman wanted to get it over with.
The other line of thinking (this one was also brought up by Bill Greene) is that Michigan slowplayed him because the coaches feel very, very good about their chances with Chris Wormley and Adolphus Washington. Wormley is a done deal, I think we all know that, it's just a matter of when he announces, but it baffles me that there could be so much confidence in Washington when he still hasn't set foot on campus yet.