Have a look at the C2DM tutorial. There are other ways of doing PUSH as well.
The basic idea is to have a persistent idle connection (just kept alive) to a server that pushes data through a network connection to the device.
Have a look at the C2DM tutorial. There are other ways of doing PUSH as well.
The basic idea is to have a persistent idle connection (just kept alive) to a server that pushes data through a network connection to the device.