Not sure, but someone else mentioned at HI that early commits usually stick with their original picks more often than not. I've no link to back up such an assertion, so take it for whatever it's worth.
EZ-E also mentioned that he heard Turner will enroll early, so if that's the case, then we can expect him at NU in Jan. 2011 along with Tyler Moore.
He paid to see the OU game and the bowl game I would think he remains a husker