TechEBlog brings us a list of geeky LEGO creations (aren't they all?), like a fully automated book scanner (this one to the left), a LEGO segway, and a very practical beer-opening LEGO robot! Link
A good list, however, they missed the Lego Toilet Paper Dispenser: Link
I was SO hoping that the Segway would be a full-sized device, rather than a miniature. I would have considered buying/making one then.