Adobe AIR is now available on the Android Market and I highly suggest that you go download and install it immediately. Why? Because in order to run any AIR apps that come out in the near future, you will need to have it installed on your phone. AIR was created as a tool to allow developers to make apps that would be easily transferable to other platforms, but the AIR app itself is also needed in order for you to run those same apps. (Read more on AIR here.)
In the description from the market, Adobe is directing you to http://get.adobe.com/air which doesn’t get you much at this time. If you want some AIR apps right now, then after you do a search for “Adobe AIR” in the market, check out all of the apps that show up below it. And if you were wondering, AIR apps in general will be available in the market and install just like any other app would.