Well he's not with Jive anymore, and he's all tied up with this tv show he's on, Randy Jacksons, Americas Best Dance Crew.
That, along with writing with other artists, doesn't appear to leave him with much time for his own stuff, which is a shame, because he has the material there, he just hasn't got around to getting it released yet.
Also, there is a rumour of an N'SYNC reunion this year, so it's not looking great!