While we love apps like Titanium Backup that make restoring your data relatively easy when you upgrade phones, buy a tablet, or switch to a new ROM, what if they weren't even necessary? What if all of your apps' data could be stored in the cloud? This would not only make backing up and restoring easier, but it would save you a big chunk of SD card storage, right? It turns out that these capabilities have been present in the Android OS since the arrival of Froyo last year. So why aren't developers using them?
Check this out from the Android Developers' Guide:
Android's backup service allows you to copy your persistent application data to remote "cloud" storage, in order to provide a restore point for the application data and settings.



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