Promoting Lenovo's range of Yoga transforming devices requires a certain amount of original thinking. That must be the reason the company installed a rotating chair wheel into a glass-sided bus and forced unsuspecting users to use the new transforming Ultrabook while dangling upside down. Still, the participants don't seem to disturbed by all of the gravity-defying computing, and if you'd like to watch their travails, you can catch it after the break -- albeit with a soundtrack that's a little on the salty side.Filed under: