It's been said that we need to learn something new every day. Well, for me today it is the fact that there's side by side single track bicycles out there. What a chuckle! ! !

http://www.youtube.com/watch?v=kDBHO550rdw
http://www.youtube.com/watch?v=giGm7...eature=related

Then there's THIS option that would demand a lot of teamwork, agreement on where to go and some small amount of coordination...
http://www.youtube.com/watch?v=WptukDRmfJw

The cranks they are using are certainly not going to be the best for serious riding. But then this isn't the sort of thing that you'd enter in the Td'F or the local HPV races....