Ketan Majmudar has a passion for all things 3D. You can see some of his stereoscopic images here and here (You'll need some red/cyan glasses for the full effect)
Ketan will be talking about the mechanics of stereoscopic viewing; showing off some of the kit he uses to produce 3D images; and will demonstrate how you can build a 'homebrew' camera for taking HD 3D home movies and stills for less than the cost of an iPod Touch.