CES Gadget show

Murata Boy, a bicycle riding robot, rides a bike at the Murata booth at the at the International Consumer Electronics Show in Las Vegas, Tuesday, Jan. 8, 2013. (AP Photo/Jae C. Hong)

Show attendees look at an installation made with smart TVs at the Samsung booth at the International Consumer Electronics Show in Las Vegas, Tuesday, Jan. 8, 2013. (AP Photo/Jae C. Hong

Molly Smith, of Westminster, Calif., poses for a word cloud portrait at the International Consumer Electronics Show in Las Vegas, Tuesday, Jan. 8, 2013. (AP Photo/Jae C.

NVIDIA's portable handheld gaming device, the Project Shield, is on display at the NVIDIA booth at the International Consumer Electronics Show in Las Vegas, Tuesday, Jan. 8, 2013. (AP Photo/Jae C. Hong)

Android powered Samsung Galaxy Cameras displayed at the Samsung booth at the International Consumer Electronics Show in Las Vegas, Tuesday, Jan. 8, 2013. (AP Photo/Jae C. Hong)

Sony's new Xperia Z smartphone is displayed in water at the Sony booth at the International Consumer Electronics Show in Las Vegas, Monday, Jan. 7, 2013. The 2013 International CES gadget show, the biggest trade show in the Americas, is taking place in Las Vegas this week. (AP Photo/Jae C. Hong)Polaroid's HD sports video camera is mounted on a helmet at the International Consumer Electronics Show in Las Vegas, Tuesday, Jan. 8, 2013. (AP Photo/Jae C. Hong)

A display made with laptops is seen at the Intel booth at the International Consumer Electronics Show in Las Vegas, Monday, Jan. 7, 2013. The 2013 International CES gadget show, the biggest trade show in the Americas, is taking place in Las Vegas this week. (AP Photo/Jae C. Hong)

Polaroid's HD sports video camera is mounted on a helmet at the International Consumer Electronics Show in Las Vegas, Tuesday, Jan. 8, 2013. (AP Photo/Jae C. Hong)