AppHarbor is a .NET Platform-as-a-Service. Developers push code to AppHarbor using either Git or Mercurial. AppHarbor then builds the code and runs any unit tests. If everything checks out, the code is deployed to AppHarbor’s scalable cloud platform.
AppHarbor lets developers spend their time coming up with ideas and developing applications, not patching servers, worrying about deployment, messing with configuration files, or scaling.
Based: San Francisco