McCain caught in blatant campaign flipflop!

Ann Althouse links this McCain Obamanation parody video, from which I captured the most damning piece of evidence.
(Click the picture to play.)

OK, I’m a McCain supporter, but I have to admit that unfortunately, the above is highly incriminating.
I mean, wasn’t McCain supposed to be against timetables, and unalterably opposed to setting a withdrawal date?
So why is he now breaking his promise and saying we’ll be out by 12,008?
Doesn’t he realize that setting a date will only embolden al Qaeda?
Anyone who thinks the enemy is not already counting the days is being hopelessly naive.
(I’m shocked by this revelation, and I’m hoping it’s all a misunderstanding or a misunderestimation or something.)