So, awhile back i saw this cool thing by Jef Han. And it turns out the genius of it is that doing that isn’t actually that expensive or difficult, so much that there is a budding international community of DYI Multitouchers (sounds kinky, i know).
Since machine vision has always been a fascination of mine (i even started a visual gesture recognition project using the isight so you could do jedi-style gestures to control the computer, but i never finished it) I decided to give this multi-touch thing a go.
This was about a month ago. Now that the second prototype is nearly done (and kinda sorta working) i decided to blather on about it on here so that I maybe my experience will help others who are trying the same things.