Segway v. Roomba
I would have loved to see this!
"... There were some spectacular collisions, but none topped the moment that a fast moving Segway, slightly out of control, met Roomba, zipping across the floor like a suicidal squirrel. Amazingly, neither seemed the worse for the wear. The Segway popped up and over while Roomba emitted a few beeps from button presses but both continued on their way. Impressive engineering on several levels, actually. Roomba, for surviving the impact unharmed and Segway for not tipping over..."
Read more on Cory Linden's Weblog