We've all heard of single serving sites: http://news.ycombinator.com/item?id=399941. Here the parent commenter is pioneering the latest incarnation of the trend: the single serving HN account.

I guess my point was that it would be a translucent cloud of items that followed the mouse. This way, you'd be able to see/read what was under the cloud but could switch your attention to the translucent cloud to see what was there.

Context menus are invisible until you right-click. Also, there's been some evidence that we remember the locations of things better if they're arranged radially (like the demo approximates) rather than orthogonally (like in a context menu). A combination of a translucent constant reminders of tasks available plus a radial arrangement of those tasks floating around the mouse might make it easy to remember what's available after a right-click. It might be distracting as hell, for all I know.

One thing's for sure, it would be more than just a context menu as we know them now.