Toward a multi-input interface

I was recently shown this collaborative editor called Gobby (there are others) and was reminded of an idea I’ve been toying with for a long time.

A lot of work these days goes into novel human-computer interfaces (think coffee table displays, networked whiteboards, etc.) and gestures (think various touch responses like multi-touch zooming), but in my opinion (and metaphor), these work are like lightly scratching the skin when there is a deep deep itch.
(Read the article)