The studio was on form with Phasespace showing off drawing in 3D and a whole range of amazing 3d printers including the makerbots with the full stainless plastruder!
Jeff Han was showing off some amazing touch screens on the showroom floor, and I found some time to make actual an actual 3d construction in the paper workshop.
Experimental technologies had some great stuff including some huge haptic feedback systems, temperature sensitive surfaces and the mole table!
I can highly recommend the advanced real time rendering course [notes here] which was a great selection of innovative teams talking about what they were doing in detail in regard to multi cores, gpus, scene management, lighting and rendering.