I didn't see this mentioned, but Tyrus Thomas has played the three a bit as of late. I know at part of garbage time last night he was out at the three and two games ago he played the three during the 3rd quarter. Thomas is an athletic freak who is obviously capable of guarding 3's and 4's (and even better once he gets stronger) but offensively he still is raw and obviously rushes shots and has trouble seeing the court (like a 3 should).
However I think him getting some minutes at the three will help him gain vision and develop skills that could make him an all around force at the 4 (if he can learn to play with his face to the basket as a 3 and than when he's at the 4 with his back to the basket...in time he should be able to have a decent inside and outside game). I know he has at least a decent starting point towards a shot, although I expect him to take a few years before he's considered anything more than passable as an offensive player (and right now his offense is due to his energy and athletism more so than any offensive skill he has).