Autohide for the Mini Player

I first saw a similar feature in Winamp a few years ago and It was one of the features I used most in it.

I was able to activate a Mini-Player, very similar to the one provided in Songbird through View->Mini Player. But the Player in Winamp was only displayed if you moved the mouse to the screen edge the player was aligned to and hiding directly after you moved the mouse away from this edge. This was very helpful and a beautiful way to control media playback without opening the heavy media-player window.

Could you implement the focus and hiding feature to the miniplayer, maybe an entry like the "Keep in Foreground", just with "Autohide"?

Thanks in advance,
Jonathan