The COD series have always seemed to favor Microsoft, and it's probably because they support them so much.
Anyways, the DC shots remind me of Fallout 3. I'm actually pretty excited to see what's gone on.
Looking at a day 1 purchase, on my PS3.
It's because Microsoft paid them to put their logo at the end. It's just exposure, nothing particularly special. Microsoft just knows where to put their money. They understand that MW2 will be an unbelievably well selling title and putting their logo will make people relate it to their system.