The NCAA has ruled Bost ELIGIBLE to play in 2010-2011.
Bost entered the NBA draft, did NOT withdraw his name from the draft in time and then re-enrolled at Mississippi State. He did not maintain eligibility last spring and would have been ruled ineligible this fall, but after re-enrolling, he was back in school and able to regain proper academic standing by the start of the second semester. However, he still was ineligible with the NCAA because he didn't maintain proper protocol to maintain amateur status.
If you remember, the NBA used to allow players to go back to college if they didn't hire an agent and went undrafted, but after a few players took advantage of this rule, most notably, Kentucky center Randolph Morris, the NCAA abolished the rule and set a strict withdrawal deadline. Bost didn't meet it, and was automatically declared no longer an amateur.
When it was reported that he re-enrolled at MSU, almost everyone expected he would never play again because of the strict precedent the NCAA had put in when establishing this rule. However, after the appeal for his eligibility, Bost was declared to play again after he becomes academically eligible (early December 2010) and after serving a subsequent 9-game suspension. This means he will likely miss the first quarter of conference play.
With that said, it makes Mississippi State a legit threat in the SEC. With Renardo Sidney becoming eligible and the return of a core of players from a year ago, including All-SEC performer Ravern Johnson, the Bulldogs are all of the sudden a much improved team with Bost running the show.
http://mississippistate.rivals.com/content.asp?CID=1132879