Android Developers Blog: Android Cloud To Device Messaging[This post is by Wei Huang, who helped implement this feature. — Tim Bray] In the just-launched Android 2.2, we’ve added a new service to help developers send data from servers to their applications on Android phones. Android Cloud to Device Messaging (C2DM) makes it easier for mobile applications to sync data with servers. Most of the useful applications on your mobile phone use the Internet to k
