Milan has had a bikeshare system since 2008 and is now up to 1400 bikes and 120 stations, although according to Wikipedia, further expansion is on hold due to lack of funds. But they are impressive bikes; instead of chain drives, they have a shaft drive. This is theoretically less maintenance and risk of a customer getting their pants caught in a chain.
The bike stations are in a really tight cluster in the central part of town; they are of little use for commuting. Wikipedia notes that the system was supposed to be 200 stations and 3000 bikes; It could certainly use a bit of geographic expansion. More at BikeMi