If you’re at all interested in new ways of interaction with computers, have a look at Johnny Chung Lee’s latest brain-dump post about low-cost interaction technologies. Throwable displays, cheap 3D motion capture, universal remotes and more. The video demos in particular are great for helping you understand what he’s talking about and seeing the potential. (I also like the way the Cambridge one reminds me a lot like old-school OU TV programming/Look Around You.)