The app is still in beta, but at least you'll now have a quickest and fastest way to download and install it on your smartphone. Along with the release of the Xperia Home launcher in the Google Play Store, Sony also made it available to additional Xperia smartphones.
The latest beta version of Sony Xperia Home includes a couple of improvements over the previous iterations such as a new startup animation, a reorganized settings menu, as well as stage icons aligned with desktop grid.
The changelog also mentions that Promise icons will be shown when installing apps. However, there are two known limitations with these Promise icons, as it's currently not possible to move a promise icon while the app is being downloaded. Moreover, icon graphics won't become available during installation due to an issue with Google Play.