Hideo Kojima sneaked onto stage at Microsoft's E3 2009 press briefing today to let the world know that the Metal Gear Solid series was coming to the Xbox 360. That new game is definitely multi-platform.
Since Microsoft didn't make mention of Metal Gear Solid: Rising being exclusive to its console, we had a pretty good indication. Even better is the Gamespress information for the newest, Raiden-starring Metal Gear Solid, which is listed for release on the Xbox 360, PlayStation 3 and PC. The release date is still TBA.
We'll know more about the multiplatform status of Metal Gear Solid: Rising tomorrow, when Kojima's almost assured to sneak up on Jack Tretton, tap him on the shoulder and, hopefully, debut the game's first trailer—then ask us if we liked it.