The list is certainly not up to date. Pittsburgh PA has had a bike share program for a while now.
http://pghbikeshare.org/
I used the bike share in Glasgow Scotland. It was great. If you were a member I think you got the first either few miles or 10s of minutes free. After that it was only... a pound for 10 minutes? Super cheap and easy. I spent 10 pounds on it in the week I was there.