So after the weekend shutdown for maintenance of the system it looks like they upgraded/changed the software. When I login to my account now they have some higher level summary stats that are pretty neat. I'm just over 400 rides, 120 hours of usage which they estimate translates to @ 975 miles. They estimate mileage based on time x @ 7.5 mph as an average speed. Along with that they estimate I "saved" 40 gallons of gas and 790lbs of CO2 emissions. If I wasn't on the bike I'd be on the subway so those "savings" aren't necessary applicable to my situation.