it's not stupid, it's advanced : The Conference Bike
Eric Staller's Conference Bike is a bike built for seven people to ride while facing each other in a circle.
No, don't ask why, just watch the Quick Time movie demonstration.
Reeks to us of the late 90's "we'd rather have anything in our office than that icky venture capital" approach to running things, but the colors are undeniably snazzy.