Comment 8 for bug 490491

+1 for the mockup.

AWN displays a similar pop-up on left-click and it is *very* useful. Ideally, this would appear on both the left-click and the system hover timeout. Scrollwheel, right click and middle click should probably remain identical to their current implementations.

Finally, it would be awesome if the pop-ups could include the actual window contents. There is a compiz plugin that implements this, but unfortunately I don't think there's a protocol for this functionality (maybe specific compositors provide an extension for this?)