[Update] Looks like Konami has corrected itself. X-Men Arcade will be hitting PS3 on December 14th, and XBLA on December 15th. May all fans rejoice.
No seriously. X-Men Arcade is coming to the Xbox Live Arcade next week, December 15, for an unspecified price. The game will feature four player local play, six player support over Xbox Live, and allow for drop in support.
The game which had originally launched in 1992, the year of my birth, has been long awaited by fans of the series. Fans who rock on with the PlayStation Network will sadly have to wait longer, as Konami did not give a release date for the platform.