Picked it up on Blu-Ray today, because it's out already (yay!) and watched it for the first time since I saw it in the theater. With the spectacle of the 3D now gone, I was able to focus more on the story, and I still absolutely loved it. What I noticed most this time around were the subtleties in Billie Piper's performance and the way she pushed the Doctor into changing his mind. She very clearly didn't want the Moment to be used, and while I gathered that much the first time, I was watching for it this time. It almost bums me out that this is likely her final appearance. Her portrayal as the Bad Wolf/The Moment was excellent.
Yeah, I watched it in a huge 3D theater in London and just recently rewatched it at home on TV. Totally agree, the story really holds up well. Great fun rewatching it!