Several projects i have worked on are related to interfaces, some informations on the tools i use will be written down on this page.

multitouch for wacom bamboo

http://code.google.com/p/bamboo-tuio/

http://code.google.com/p/bamboo-tuio/source/checkout

http://www.openframeworks.cc/forum/viewtopic.php?f=14&t=239

tuio:

http://tuio.org/