How will Google achieve the noble goal of one Android for all? The KitKat is to bring that most noted change. Google slimmed down the OS to a 512MB memory profile. It now uses 16 percent less memory than the Jelly Bean and on performance front it brings 12.9 percent more efficient use of pixels. So the entry level Smartphones which missed the Android update for lacking the sufficient RAM memory to function smoothly can now open up for updates.

Adding to the cause, KitKat will give Google’s OEM partners the choice to ship only one version of Android by 2014. According to Pichai, it's about selling devices with the latest version of Android and always keeping them on the latest version of Android.

The Google’s noble cause seems appealing but it's unclear if Google will put any pressure on OEMs to ship every new handset with KitKat, even if they have the option to do so. Adding to it, the OEMs who add tweaks to the stock Android to suit their needs, like Samsung’s TouchWiz, which consumes extra memory, may not work around to accommodate new version to the older Smartphones. So there's no guarantee that existing handsets already in the hands of users will get updated either.

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