Lightstreamer is a perfect means to push data updates to any application/device connected to the Internet, including Android phones. For this reason, we have decided to release an Android example for Lightstreamer, together with full-source code.
This Android app, developed in Java, uses the Lightstreamer Java Client library to subscribe to 15 stock prices (as most of our typical "Stock-List Demos" do). The price updates are received in real-time, with very low latency, through a connection based on HTTP streaming.
All the well known optimization mechanisms of Lightstreamer take place, such as congestion control, adaptive throttling, delta delivery, and conflation. This results in a very modest bandwidth used to push the data.
You can download the full source code and use it as a good starting point for your own tests and projects.
If you don't see it, please go to http://www.lightstreamer.com/demos.htm#AndroidDemo