What's the point of the tear-off functionality? If torn what happens on hover then?
It was a secondary thought--this could be a more-integrated and more ideal way to use "gadgets/widgets". Basically they'd act as small versions of the apps for when the app is otherwise minimized. You could do a simple task such as change the song or pause downloading, without having the larger main window open. If this were integrated into the panel it could be done by the user to any app that used the library without any major effort by the developer. It's just an extra idea, not as important as the main one.