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 http://news.y

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 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."