Don Park

**This is an old revision of the document!**

Pigeon is the name of the background task in the android client.

InBound messages:
 onCreate()
 onStart()
 onBind()

 30 second heartbeat timer
 GPS notifications from android

The next step (2008Dec9) is to consume GeoRSS feeds and display them on the map. The pigeon should do the polling so that it can set off a vibration proximity alarm.

That means the Radar activity, which has the UI, will have to use the pigeon interface to manage the list of RSS URLs.