Xbox blues.
Street Fighter x Tekken (SFxT) is loaded with goodies. Besides a heavy Street Fighter and Tekken roster, exclusive characters such as Cole from Infamous will make their way to the PS3. Even the upcoming Sony handheld, PS Vita will get exclusives such as Pac-Man and possibly Mega Man.
So with Sony getting all the extras, where's the love for Microsoft?
Capcom's Yoshinori Ono wanted to spread the love to the Xbox 360 as well, but it wasn't meant to be. See his explanation (via Xbox 360 Achievements) below:
"We do have the exclusive characters for the Sony platform. We have Cole, the two Sony cats, Kuro and Toro. But basically for the Xbox 360, we were in discussions with them (Microsoft) for which character to put in as an exclusive, but we weren't able to decide on a character because of differences in timing and things like that. In terms of characters we wish we could have put in the game, Master Chief or Marcus Fenix from Gears of War would have been really cool, but it was just really difficult."