The disc special features though pale in comparison to the limited edition UK blu-ray version (which I'm getting for Christmas). Kind of disappointing actually. Just four featuettes It also seems rather expensive for just a single disc release. Not sure what Warner Bros is thinking about other than being greedy around Christmas time.
http://www.nolanfans.com/2010/10/13/inception-dvd-blu-ray-coming-on-december-7th/
http://www.nolanfans.com/2010/10/13/inception-dvd-blu-ray-coming-on-december-7th/