Last year, the city said it would expand the SmartBike D.C. bike-sharing program tenfold in fiscal year 2010 — that is, from 10 locations with 100 bikes to 100 locations with 1,000 bikes. Last month, it announced even bigger plans: a joint partnership with Arlington, VA to create a regional bike sharing system with 1,100 bikes at 114 stations — the nation’s largest bike-sharing network. Expect the system to be fully operational this year, when residents and visitors will be able to pick up a bike in D.C. and drop it off in Arlington, and vice versa. Annual, monthly and daily memberships will be available for area residents and visitors.