A feature of the Android Market that I didn't know about prior to publishing the TWiT app is that it collects crash reports! I got my first report, a NullPointerException, that occurred when the user pressed the stop button without having previously pressed the start button. An assumption on my part that I had overlooked. I love the Android Platform!
It should go without saying that this bug will be corrected in the next release. In fact that piece of code had already gone under quite a lot of changes.