What Flex/AIR SDK are you using? Have you been testing some of the nightly builds posted up on Adobe Labs? If you have, or would like to, then FlexWatch might just be the application you're looking for.

FlexWatch pulls all the nightly builds for Flex 3, providing a quick, accessible list of changes to the SDK. Its especially useful if you're watching for the inclusion of a specific feature (linux support?) or fix to your favorite bug. Its missing a few bells and whistles, like seach functionality, but I'm sure that will show up soon ;)

Go ahead, take it for a test drive and let me know what you think. 

Cheers,

Todd