By predicting what you want to do next in any app, Now on Tap is a small update that could become a very big deal.
With its upcoming Android M operating system, Google revealed a major UI breakthrough for smartphones. It's called Now on Tap. An extension of Google Now, you simply tap and hold the Home button inside any Android app, and a card appears on the bottom of your screen suggesting a number of apps that can help carry out the next thing Google thinks you want to do on your phone.