Google's 'Now on Tap' is Android's next killer feature -- if it works - CNET

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"Now on Tap is built to be a mind reader of sorts, a companion that gazes at your device screens right along with you using its digital eyes, constantly collecting ancillary information about the emails you're reading, the stories you're reading, the music you're listening to, and even the route you're driving. Google, which launched Google Now's Now on Tap at its annual Google I/O conference in San Francisco, proffered some sophisticated scenarios, like Now on Tap suggesting gas stations as you drive the rental car back to the airport (Google Now already suggests when to leave to make appointments, and tracks your upcoming flights).

In other instances, it can flag action items in your email (say, hand you info on a restaurant you mentioned, or prompt you to order dinner items through an app), play you some music, and help hook you up with a car service and weather report when you step off the plane somewhere new."

Google's 'Now on Tap' is Android's next killer feature -- if it works - CNET