Sega of America announced today that a playable demo of Iron Man, based on the upcoming Marvel Comics film adaptation starring Robert Downey Jr, will be available on the Xbox Live Marketplace tomorrow, April 18th. A similar demo is planned for release via the PlayStation Store, but Sega only noted that it will "soon" be released.

To commemorate the announcement of the impending demo, Sega also released a new trailer for the game, which is embedded above. Iron Man will be released on Xbox 360, PlayStation 3, Wii, PlayStation 2, PSP, Nintendo DS, PC, and mobile platforms on May 2nd, the same date as the film. Be sure to check out the recent 1UP blog entry from The Marvel Game Guys (Chris Baker and Justin Lambros) for a look back on the various videogame attempts to replicate Tony Stark and his wondrous suit of armor over the years.