BK Yoon, President & CEO of Samsung Electronics.

John Legend performs during the Yahoo Keynote.

InAir is a new product, just launched on Kickstarter, that senses what you are watching and draws in relevant details, information and social media for an augmented television experience.

David Pogue riffs on the recent spate of new maps drawn of the United States. The former New York Times columnist and blogger will edit a digital technology magazine for Yahoo!

the plug is built into the battery case