Adobe AIR for Android should go live on the Android Market on Oct. 8, according to a tip posted in the Android Central Forums by aquakevem, and developers will be able to upload their apps as soon as the runtimes are live. In simple terms, AIR is a framework that allows Adobe Flash style applications (check out these from the Adobe Flash Summit) to run as installed apps on your Android phone. A huge plus to developers is that the same code can run, using Adobe Air, on multiple platforms, which means there are a ton of apps already built that can be ported to Android with little or no changes to the code.
You can learn a bit more about AIR, and Adobe's relationship with Android from our interview with Adobe platform evangelist Ryan Stewart. Then it's a matter of waiting for Adobe and the inevitable flood of games and apps! [Android Central Forums]