Goole Android C2DM

最近去了解了一下目前手機上的一些推播技術，找到目前Goole推出的Android C2DM，採用GOOGLE APP Engine 雲端技術去開發，其實還蠻簡單的

Android Cloud to Device Messaging (C2DM) is a service that helps developers send data from servers to their applications on Android devices. The service provides a simple, lightweight mechanism that servers can use to tell mobile applications to contact the server directly, to fetch updated application or user data. The C2DM service handles all aspects of queueing of messages and delivery to the target application running on the target device