Seems like its deserving of its own thread instead of piggybacking on existing ones. I'm going to stay spoiler free since it doesn't air in the US for a week or two.
That was AWESOME. I loved everything about it (maybe not Mickey 2.0...). I was quite impressed with Matt Smith -- the way the Tennantisms wore off as the episode went on especially.
I love "nu-Who", but I was really let down by the season of "Specials", and I think the RTD/Tennant version was rapidly running out of steam. I really think Moffat has this thing on the right track.
I don't want to wait another week for the next episode.