They are certainly in a lot of places now. We saw one in Boise last year. I know someone is trying to get the licenses to run one here in Arlington. Most surprising was seeing a number of them running along the side of a major road in Budapest.
Budapest? Nuh-uh! Although their bike infrastructure is better than Portland's and they like to drink, so I guess I shouldn't be surprised.
Wow. I've never heard of this but I think it's a great idea. Seems like it would only work in cities/towns that are relatively compact. For example, I could see it working here in Santa Monica, but not in LA proper.
I find them wildly amusing. Especially after the crew has had a few drinks. Quite amusing!!!