Your cat will love LG's rolling robot

One of the most fun smartphone accessories to come out of this year's Mobile World Congress expo has to be LG's Rolling Bot. It's a spherical ball that rolls around on command from a smartphone, and includes a camera and laser pointer.The bot can be controlled locally or remotely and is envisaged to be kept at home. When you're away, you can remotely trundle around the house and check everything is OK via livestream -- well, at least until you reach the stairs.LG also thinks it might be up to th