As you all know, the Android operating system owned by Google Inc. is named after delicious dessert foods namely; Cupcake, Donut, Eclair, Froyo, Gingerbread, Honeycomb, Ice Cream Sandwich, Jelly Bean and now the most popular OS in the world powering over one billion devices has been named after a very popular chocolate bar 'Kit Kat' , sounds yummy. As usual new features have been added and known issues with previous OS's have been resolved. There have been rumors of its release in October this year and they have been confirmed by the Official US Kit Kat Facebook page, although the exact date is not yet known.
The official U.S. KitKat Facebook page has said that the Android 4.4 Kit Kat will roll out to HTC, LG, Samsung and Sony devices so dear users of other android devices, you have to wait small.

It is said to come with a re-designed Vanilla User Interface, new notification widgets, new animations and different colour options to change the default Android blue colour.
Source: http://www.naijatechhub.com