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.
The graphic was created by one of the players, Kinvey, and shared in GigaOm's coverage.
We have previously covered backend-as-a-service companies and how they help make developers more efficient.