Wi-Fi portable hotspot is now here as well, if you're on your mobile data connection and you want to give someone access to the internet via your phone, you can do that now via this function. Developers can now also specify if they want to allow users to install applications directly to SD cards or not. Application backup API was also added here, welcome automatic restore function. Cloud to device messaging was introduced by Google in order to enable the developers to deliver a better experience when it comes to sync and notifications.

As far as speed goes, Google introduced Dalvik JIT (Just In Time) compiler which deliver 2-5x performance boost to the CPU code compared to Android 2.1. Google highlighted 4 areas from this update which you should know about, speed, APIs and services, browser and Android Market. Android 2.2 Froyo was introduced in May 2010. Google did its best to introduce some much-needed fixes to the OS and also introduce new features to it.

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