Yes it is available, but it doesn't offer the full integration of the stereo like the factory unit. It will use mute the car speakers, but has it's own speaker to broadcast the sound, not the stock stereo speakers. Also doesn't show the caller info on the head unit.
They probably will never sell it as a kit but you can order the components and piece it togeather yourself. It seems the only part that we are unsure of is teh caliber specific pillar wire harness. Do a search for uconnect on ebay and a guy is selling 2 kits he pieced togeather. I think his reserve may be a bit high though due to the fact that he paid full dealer price.