A selection of tech news from around the web.

A selection of tech news from around the web.

New 3D displays use head tracking to ditch the glasses Facebook and the Future of Check-ins A Home System Leaves Hand Controls in the Dust 3D Holograms Invade the Fourth Dimension A Glimpse at the Future of Foursquare Your Smartphone Is a Better PC than Your PC Ever Was or Will Be Breakthrough Energy Harvesting Device Successfully Fabricated Samsung Has First Wi-Fi Direct Smartphone

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