Adobe and Major League Baseball announced today that they have signed an agreement for Major League Baseball to power all their video content, including the live MLB TV content that is wildly popular.

The announcement indicated that video content will also be available offline with use of the new, yet popular, AIR platform.

Competitors to the Adobe Flash platform include Microsoft Silverlight and a variety of Ajax/Javascript frameworks, though one SproutCore seems to be Apple’s choice for rich media applications. It is unclear if it will develop into something more full-featured with the ability to handle video.