Just saw a great talk by Jonathan Oxer, titled Hardware / Software Hacking: Joining Second Life to the Real World. Jonathan went along the lines of last year’s talk, where he did some wiring of switches to his parallel port, and read the values with scripts written in languages such as Perl, C, and even PHP.
This year, he has wired up those devices to Second Life, and allowed virtual people to interact with those physical devices.
Awesome talk, and if you missed it, it’s highly recommended you see the video (part A, part B — Ogg Theora).

