Try TwiPhone

A Ph.D. student of us, Andrea Girardello, has developed TwiPhone which logs calls, text messages and their position by constantly monitoring the mobile phone device (just have a look at Twitter for current logs). This allows users to share their personal communications on the Twitter online social network.

If you are interested, please feel free to download/install TwiPhone through the Google MarketPlace and try it for some days. In any case, your comments are very welcome, also if you decide not to tweet anything or just send your a feedback on this project.
We am looking forward to your comments. Thanks a lot for giving it a try.