It is the common name for version 4.4 of the Android operating system, used on some mobile phones.
Yes, the Kitkat Android version is a good operating system.
Android Kitkat version 4.4 deemed to be the best, try it.
You can upgrade your Lenovo S660 to Android KitKat using the Android 4.4.3 KitKat update for Moto E.
Your Lenovo S660 can be upgraded to Android KitKat using the Android 4.4.3 KitKat update for Moto E.
Android in general can be referred to the company under Google that develops the operating system and devices. Android KitKat is the codename for one of many versions of Android's operating system, version 4.4 in this case.
As of August 2014, the fastest version of Android OS is version 4.4.4 (KitKat). The next Android version (Android "L") is set to debut in the fall.
KitKat (Android 4.4 OS) is rolling out to the Nexus series of tablets (Nexus 7 2012-2013, and Nexus 10). There's no ETA as to when the OS will roll out to other tablets at this time. There are developers making a customized ROM of KitKat that would likely rollout ahead of an official update.
As of August 2017, the latest version of Android is Nougat, which is version 7.0 and started to be released in October 2016.
They do not. IPhones use Apple's iOS (version 7 as of this writing), while Android phones use Google's Android OS (4.4 KitKat is the latest).
Android KitKat improves on many things including battery usage, photo editing, cloud printing, and multi-tasking, just to name a few. The best new feature is screen recording, which saves video if what is happening in your screen as an .mp4.
The Android OS on the Samsung Galaxy S2 is upgradable to Android 4.1 OS (Jelly Bean) in stock form, but could be upgraded to Android 4.4 (KitKat) if it is unlocked and rooted.
Android 4.4, dubbed "KitKat" (after the candybar of the same name), is Google's mobile OS. It debuted on October 31, 2013 on Google's device, the Nexus 5, and has since been released to various other Android-powered devices. Unlike past operating systems, KitKat can be run on older devices.