Google is apparently testing a mobile UI redesign called LEGO, which is essentially a sandbox for mobile search. The UI looks a little different than it does now, but what really stands out is the new super smooth animations.
It’s possible to access the redesign here on mobile, but Google may or may not block it soon. Also, since this is an experiment there’s debug data in the image searches , and it’s suggested that you append “bacon” to your searches. It’s also a little buggy, so keep that in mind. Hit the break for a video showing the new UI!