Is there any of this solution that bundles with an easy mobile library/sdk? I was asking for something like a semicomplete backend opensource solution here http

Is there any of this solution that bundles with an easy mobile library/sdk? I was asking for something like a semicomplete backend opensource solution here http://news.ycombinator.com/item?id=3735387 http://news.ycombinator.com/item?id=3735387 but unfortunately I got no responses