There are now a number of backend-as-a-service companies focused on mobile developers. We list 6 backend APIs that help with common mobile tasks, including the Cocoafish API, which was today acquired by Appcelerator. But it's a much bigger ecosystem, as shown in the infographic below.
AppDirect, cloud service marketplace and management platform, has launched a series of APIs that opens the doors to its entire AppDirect platform. The result of the APIs allows any service provider that desires to open an app marketplace to rely on AppDirect for all of the back-end heavy lifting, so the marketplace developer can concentrate on a customized front-end and end user experience. From sign-on to billing, AppDirect's entire platform can now drive third party marketplaces.