Now I'm a huge fan of stock Android KitKat and Lollipop myself, but a Google Play edition of the Z Ultra makes less sense. Sony has some nice tweaks and additions with its UI skin. A lot of people might pick up Sony's device in lieu of something like the Vita due to its streaming features. However, the Google Play Editions takes this feature and others from the Z Ultra. It just seems kind of random to make the Z Ultra specifically a Google Play Edition device.