Could these be some of the subtle changes to be found in Android 4.3?
Although we didn't get a big reveal of the next version of Android at Google I/O, some evidence is mounting that Android 4.3 could be the impending next version. According to pictures posted by a user at XDA, at a mobile expo in Thailand at least one Nexus 4 is being put on display running a purported build of Android 4.3 (JWR45B). Now we've seen plenty of faked "About phone" screens in our days, and that is a very real possibility in any of these types of leaks. But as the user poked around the phone to show a revamped camera UI, we tend to give this more credibility. The UI basically looks to be an expansion of the current long-press and swipe gestures found in Android 4.2, with multiple levels of settings that can be accessed -- thankfully none of which can be hidden by your thumb anymore.
Aside from the slightly different numbering and a visual refresh of the camera, we're very light on details for this potentially upcoming release. Hang around after the break for a video of the device in action, with most of the time spent on the new camera UI.