Some Google Nexus One users might have gone on to Android 2.2 (be it over-the-air or via a manual installation). And if you are one of the few enjoying the benefits of Froyo, then it's time to try out the cloud-to-device messaging API. To be exact, test out how you can push links to your Android 2.2 device.
Engadget - While we absolutely adore our Nexus One -- now that it's got a bellyful of that fabulous frozen yogurt -- one of the most exciting Android additions shown off at Google I/O isn't actually slated for Froyo: the ability to push apps and music over the air from computer to phone. The underlying framework apparently is, though, and thus a bite-sized version of the functionality is already available at Google Code.
While it might not seem like such a big deal, the potential it holds for developers to create apps that communicate with your Android 2.2 device over-the-air is tremendous. It's just a matter of how and when these apps will appear on the Android Market. Check out a video demonstration and more details over here.