From what I can tell we've been in contact with him, but he isn't one of Coach Cal's main priorities for the 2012 class and thus doesn't have a scholarship offer to Kentucky. We're recruiting Shabazz Muhammad, Ricardo Ledo, and Archie Goodwin as our main SG targets in the 2012 class, with Harris maybe being our 4th target at that position if we were to whiff on all 3 (which is unlikely).
In an interview with Harris and his mother, it says "Kentucky has not offered a scholarship at this time, but they said that if Kentucky were to offer, Gary would definitely be interested."
I don't see Gary Harris getting out of the Big Ten personally, and I'd be extremely surprised if he were to come to UK. Mainly because it'd mean we didn't land Muhammad, Ledo, or Goodwin.