I'd heard this a few days ago but hadn't seen confirmation, but I guess I should've just checked the Spurs blog Pounding the Rock. I'm not completely surprised, since the fact that no one (well, me anyway) had heard anything about him re-joining the Toros by now should've been an indication that something was up. It also must've been disappointing to put all that time in re-making his game as a point guard, only to have the Spurs decide they were just going to roll with Roger Mason as their third PG. Best of luck to Williams.