Some thoughts follow.
in some ways I'm forced to assume Mr. Davies thought we'd all be too hungover to notice.
-Martha and Mickey? Aren't they in different dimensions, Forever Separate?
-The Zappy Glove of Rassilon?
-hell: The Double-Oh-Seven of Rassilon?!?
-did anyone look into what 500,000 rads does to all the bipeds we know of, and how quick it does it?
-was Rose really so effing dim she wouldn't have noticed that 10 looked so much like Mr. Random Guy on New Year's, 2005? I knew she was stupid but...
-how did Donna's head not explode, again?
Davies did a nice job of the human touch, and voiced the problem I've always had with the Doctor's pacifism- his willingness to play 'let's you and him fight'. Wilf was very well-written, and his last bit on-camera had me bawling. Past that, I'm fairly sure that we're better off with Moffat. Hell, I'm pretty sure we'd get more coherent production values out of Aaron Spelling- AND HE IS DEAD.
I'm hoping for a 3 Doctors ep where we get to see the full context on that brief bit of real-time 10 that we see in 'Blink', sometime: that'd be awesome.
Nice work, Mr. Tennant, and thank you for bringing The Doctor back so emphatically, Mr. Davies. Godspeed you both.