No bug: Update
We only have one concern regarding the way we execute the http request without pausing the UI thread. So I'm thinking we can add an ExecutorService (1 thread) that runs all the tracking events (including pings).

ExecutorService executor = Executors.newFixedThreadPool(1);
executor.execute(<runnable>);

This will make it easier for the android developer to incorporate Woopra and not worrying about threads.