In Android 4.4 KitKat, Google has introduced a new launcher that provides quick and easy access to Google now with just a simple left-to-right swipe. The launcher also includes unlimited number of home screens, new icons and bigger icons among a bunch of other visual changes.
The APK of the new launcher has already been extracted, and surprisingly, it works on all Jelly Bean devices. However, you will also need to install the latest version of Google Now and Play Services for the launcher to work properly.
The new launcher worked perfectly on my HTC One without any hiccups. To add new homescreens, users just need to drag content to the right mode side of the screen and new home screens would be added automatically. Swiping from left to right from the left-most homescreen will provide you with quick access to Google Now. There is absolutely no lag here or loading times, which is much better than the current implementation.
Via – XDA