Well, colour this Doctor Who fan very happy indeed.
I was half expecting to be horrified with some sort of yoof-oriented costume like a hoody, but this is every inch the Timelord. Young Mr Smith looks great in a kind of 50's US College professor get-up, kind of like Atticus Finch meets Dr Jones. And elbow patches and braces as well - as many folks are saying, there is a bit of the Troughton about him. I was cautious about someone as young as Matt Smith playing such a revered and wise character, but there are little to no doubts remaining in my mind now. I reckon Steven Moffat knows what he's doing.
New TARDIS as well. This looks goes further back before my time as a fan, bearing more of a resemblance to William Hartnell's old girl, what with the St. John's Ambulance emblem. But it's very clean looking, leading me to believe the rumours that something catastrophic may happen to the TARDIS when the 10th Doctor regenerates. A new interior would be nice, but I'm old and just want to see something else to remind me of a childhood spent watching a particular television programme from the side of the TV - no behind the sofa for this weirdo.
All in all, this looks good to this particular Who fan. Looking forward to seeing Steven Moffat's stories next year. Yay!