This allows easy de-selection, and other actions such as renaming
I think thats a good idea too, even though its pretty much only recreating the right-click options its very accessible to Users and could even be used on a Touchscreen (that obviously doesn't offer something like right-click).
I've added the Mockups to the Wiki like suggested. Feel free to correct me if you think any explanations i gave in the wiki are not accurate enough or misleading.
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Why don't you start at the beginning? Yes, and when you reach the end... Stop. twitter.com/cldx3000