Android’s next version 4.4 named after Nestle’s chocolate treat, Android Kitkat.

The Next version of Android (Android 4.4) will be called Android Kitkat  and not Key Lime pie.

"Android is the operating system that powers over 1 billion smartphones and tablets. Since these devices make our lives so sweet, each Android version is named after a dessert: Cupcake, Donut, Eclair, Froyo, Gingerbread, Honeycomb, Ice Cream Sandwich, and Jelly Bean. As everybody finds it difficult to stay away from chocolate we decided to name the next version of Android after one of our favorite chocolate treats, Kitkat®!"

This is what Android says in their website..

Google has made a deal  with Nestlé to use the name ‘KitKat’ for its next version of Android.
Despite the partnership, Google representatives were keen to point out that this was not a “money-changing-hands kind of deal”, although Nestle does plan to sell more than 50 million chocolate bars featuring the Android mascot on its wrapper. The KitKats will ship to 19 key markets including the UK, US, Brazil, India, Japan and Russia.
Another big announcement was made by Sunadar Pichai, Head of Android,
“We now have over 1 Billion Android activations and hope this guy in front of the building keeps that momentum going,” said Mr Pichai.

Evolution of Android
Android has come a long way since it’s first release, Android Cupcake!
Android is now bigger and 1 billion strong! It has grown so much faster and has managed to compete against Apple’s iOS unlike any other mobile OS out there.
Let’s have a look at how Android has evolved over the years. Android’s tendency to name their OS after a sweet can be seen in this Evolution of Android Image.

So let wait for the KITKAT MOBILE :P