So I am more of a mouse person and I’m quite happy with that. But sometimes I feel like I could use more of that power. My left hand usually waits over my keyboard for the cmd+{Q,W,A,S,Z,X,C,V} combos and I could make more use of it. There are certain times when having a second mouse and a second cursor would be handy. Specially when I’m organizing files, practicing my design skills in Fireworks or just playing that weird opensource games, a second cursor would boost my productivity. I would call this Multi-Cursor.
A google away, I found a Multi-Cursor window management system but it is a different concept that mine. It just allows you to have several cursors from different users working in the same workspace, just like you can do in almost any remote assistance software since NetMeeting).
In my idea of Multi-Cursor, I’d be able to control (at least) two cursors from my mouse, and use both of them at the same time. This would require OS to have multi-tasking a bit more in mind, and allow specific applications to achieve the full potential of multiple point interfaces. I bet hardcore CAD users would love this feature. Of course most of the people wouldn’t, but I just wanted the possibility, not that it was the default setup!
And of course, the multi-touch systems like those in the iPhone or Surface would already be possible in any computer that could implement the multi-touch interface. And we could be using it with full potential, not only with simple gestures like those you do in macbooks pro and air, although I might admit that is one step in this path to the future’s human-computer interface.