10/GUI – Desktops Without a Mouse, Operating Systems without Windows

This system has come up before a few times (the one with the most discussion I see in a quick search is http://news.ycombinator.com/item?id=877535).

The problem with this system is that it seems to require 10 usable fingers, which excludes a non-trivial number of people. Or, as my best friend (who only has the equivalent of two fingers - but less flexible - and who has to mouse using his feet) puts it, "The future of interfaces seems designed to screw me over."

I've tried the multitouch-is-a-keyboard thing with a fingerworks device, and while it's great for graphical/point-and-click things, the typing speed penalty you pay for not having physically distinct keys is huge. Definitely not worth it unless you just don't type very much.