We just got an update from Capcom about the release date of Marvel Vs. Capcom 2, which is sure to make a big splash when it does finally release.
According to Capcom, the game will be released on XBLA on July 29th. So unless there is some sort of timed-exclusivity deal with Microsoft PS3 owners should receive the game shortly thereafter.
From the Press Announcement:
The day you ‘ ve been waiting for is just around the corner. Today we are announcing that Marvel vs. Capcom 2 will be available globally as part of Microsoft’ s “Summer of Arcade” through Xbox Live on Wednesday, July 29 for 1,200 Microsoft Points.
-Capcom PR Team