Originally shown as a video at the Tokyo Game Show, from what can be gathered from the press releases, the Capcom Game Center is going to be an online "Arcade" that allows multiplayer play over an Internet-connected PC. There is said to be over 20 titles playable for the service.
In the promo on www.ga-cen.com, there are images from several versions of Street Fighter and the Darkstalker series. For non-fighting game fans, Capcom has reached into its vaults and pulled out some classics like Trojan, Side Arm, Forgotten Worlds, Mercs, and 1942.
The Capcom Game Center is currently in its beta stages. There is no word on US availability.