Physical interaction design DH2400

If you haven't seen it yet, our ever so productive friends at MIT Media Labs have a really cool interaction project in development:

http://www.ted.com/index.php/talks/david_merrill_demos_siftables_the_smart_blocks.html

I would also like to recommend the other talks at TED, the site is full of inspiring talks about everything from physical interaction and design to physics, biology, education and much much more. A good source for inspiration!