Bipartisanship is mocking an opponent for being agreeable?

The "McCain is Right" advertisement was released before the first presidential debate was over. In it, Senator Obama is mocked for the instances where he acknowledged areas of agreement with Senator McCain. At first glance, this seems at odds with Senator McCains record of bipartisan leadership, especially at times of national crisis.

Requesting:

1. As this advert was released without the knowledge or consent of Senator McCain, does he "approve this message" now that he has had chance to see it?
2. If so, how does he reconcile the need for greater bipartisanship while actively discouraging it through public advertising?