My Android App has an App Widget associated with it which is updated every 10 minutes on an Android Device. These updates send HTTP requests for data to the servers and parse th
When you create the HttpClient in android you can set the following
client.getParams().setParameter(CoreProtocolPNames.USER_AGENT, "MY Android device identifier");
This set the USER_AGENT for each http request send to your server. On your server you can retrieve the USER_AGENT to determine that the request came from your android device