I got fed up with those strange SMS messages that appear after a voicemail message so I wrote an application to automatically delete them when they arrive. I need to do some more testing, but if it all looks okay I'm happy to let some other people test it too. The app needs some pretty scary permissions to work, which means that potentially it could delete all your SMS messages. Although it has not done this and only touches messages on the SIM, any testers need to be prepared to loose all their messages. Also, it won't work if you keep any of your normal messages on the SIM rather than the phone. I've only tested on the Desire, but there is nothing Desire specific, so it may work elsewhere. On the plus side, the app is only about 16k. On the minus side, it needs Android 2.2, it must be installed on the phone storage and the icon is rubbish (I'm graphically challenged). If there is any interest, I will follow up.