Some years ago we wanted to create an android app for our local bike sharing system and found out there was no open data available for us to do so. Other systems around the world had exactly the same problem.
Instead of creating yet-another-app, we created Citybikes, a project that provides bike sharing data for apps, research and projects to use.
To date Citybikes supports more than 400 cities and the Citybikes API is the most widely used dataset for building bike sharing transportation projects.
