Here's some interesting information about the Google Experience launcher Android 4.4; it's basically just a front-end for Google Search. Thanks to some code digging over at Ars Technica, Google Search is drawing everything you see on your home screen and handling all of the information. There's still a Google Home apk, but it essentially just forwards all of the information to Google Search.
This makes it a little different than just adding a few extra search widgets on the home screen, mainly because of how it's going to integrate into Android. First off, Google Search is updated through the Play Store, so this Google Home should likely be made available in the Play Store before long. It also means that any popular device that ships with Google Apps (even the heavily skinned phones like the S 4 and HTC One) will be able to take advantage of Google Home and bring a more stock experience to any device.
This is a pretty sneaky move to push stock Android onto every phone, but like how Google is handling their Play Services, it's an excellent way to make sure that they can update devices with just a Play Store update instead of manufacturer-and-carrier approved OTA updates.
source: Ars Technica
Nothing sneaky about this, they’ve actually made it very easy to switch launchers. Android is about choices.
Smart move for sure.