First On Nexus 5
First released on the Nexus 5 (shown) in November, KitKat on Google's unlocked and overlay-free smartphone integrates more tightly with Google Search and Google Now. It also includes the new Google Experience Launcher, which delivers an improved speech-recognition engine and permits unrecognized or incorrect words to be tapped into submission. Search results can appear with links to geolocation-relevant web pages, and eventually also will link to installed apps that contain search-relevant data. Launcher is still just a swipe away from any app and comes pretrained to respond to the phrase "OK Google."