For now, the Google Experience Launcher will remain available only on the Nexus 5. Google has told The Verge that its exclusivity could extend to last year’s Nexus 4, but for now they’re analyzing how users handle it on the newest Nexus device. Another possibility is for the Google Experience Launcher to be made available in the Play Store; however, that is likely far off as they would rather like to see devices get upgraded to the latest software version. So if you don’t have the Nexus 5, hang tight or see if there’s a KitKat ROM or leaked build available for your device. They’re showing up quite frequently. Hit the break for the full quote on what Google shared with The Verge.
Previous Nexus devices acted as standard-bearers for a clean, stock version of Android and showcased Google services. The Nexus 5 still does that, but the order of importance seems to have been flipped. Google tells us that the new Launcher on the Nexus 5 is exclusive to the phone — though the company may change its mind and offer it for the Nexus 4 and perhaps even put it on the Play store someday. For now, Google wants to see how users take to the Launcher on Nexus 5 before it offers it on other devices.
Duarte calls the new Google Now-infused launcher “the single most exciting thing for Nexus 5,” and he’s right that it’s the most prominent new software feature in KitKat. It listens for you to say “okay Google” and owns your screen from top to bottom — including that extra 12.9 percent of screen real estate afforded by the new translucency option.
Source: The Verge