Lose your hotel key card? Did it accidentally get demagnetized? Well, there's a new, high-tech way to get into your room: mobile keys that let guests unlock their doors with their cell phones. CNET's ... more 
Lose your hotel key card? Did it accidentally get demagnetized? Well, there's a new, high-tech way to get into your room: mobile keys that let guests unlock their doors with their cell phones. CNET's Kara Tsuboi reports. less 
1 / 21
CNET
Fri, Mar 14, 2014 11:30 AM EDT