What's cool at CES 2014? Folks have been asking us that question all week, ever since the nation's largest gathering to display new devices, gizmos and gadgets got underway. The answer: big TVs, as expected, plus some fun 3-D and wacky phones as well. LG and Samsung played up the new curvy Ultra HD 4K TVs big time in their booths, to massive crowds. Beyond the TV, LG turned heads with a new curved G Flex smartphone, which will be available for sale later this year.