qwerty's last app he wrote for the N900 was an app to control volume & skipping tracks of the media player when the screen was locked, & as I recall the button functionality was high-function, well thought-out, & very straightforward. Maybe something like rocker switch for volume, & camera button to skip to next track: I can't remember the name of the app. Edit: Here it is, his last post: Extended Locked Media Player Control. Quite a loss that he left, but understandable how he got so p**** off by Nokia. http://talk.maemo.org/showthread.php?t=59700