A few weeks back, I wrote an article about Amazing Human-Computer Interfaces, which included a plethora of videos showing off some of these cool technologies.

Today, I ran across a guy (Randy Jones) who did a DIY version of a multi-touch interface.  He uses it to play music, and shows off how it works in the below video.  It's got a much higher sample rate than most, and is pretty impressive as it identifies where your fingers are located...as WELL as how hard they're being pressed!

Check out this cool video below...

More information about this prototype can be found here.