Here’s another option to consider for your backend production needs: Parse!
Once you get past the quite remarkably SEO-unfriendly name, there’s a pretty good collection of services there:
Our native SDKs for iPhone and Android provides a simple-to-use ORM for storing data to our platform. You code in Objective-C (for iOS) or Java (for Android), and our SDK will do all the hard work of sending and receiving data…
Push notifications are a tricky endeavor for both the iOS and Android platforms. Parse simplifies push notifications…
With our user management system, you can quickly add user accounts to your app without having to code an full authentication system yourself … Facebook and Twitter account integration (coming soon!)
Looks like a nicely designed API judging by the documentation, so hopefully they’ll be able to find a sustainable pricing model to keep this one around for a while. But hey, if you’re a cutting edge kind of d00d(ette), sign up for the beta and let us know how it goes!
StackMob is another back end option that looks worth a gander too!
How To Choose the Best Backend Provider for your iOS App: Parse vs Stackmob vs. Appcelerator Cloud and More!