Nepal, south Asia's poorest nation, just took a gigantic step in the world of communications.  NCell, a company owned jointly by local investors and telecom provider TeliaSonera, just installed a new 3G facility 17,388 feet up the slope of Mount Everest and today made the highest-based video call in the world from that location.  What this means is that climbers will now be able to keep up with their families as they ascend the world's tallest peak or even call for help using a regular cell phone instead of having to lug a large and exremely expensive satellite phone.  It's also the first step by TeliaSonera in bringing high speed Internet to around 90 percent of the population.  Currently, only about a third of Nepal's 28 million people have Internet access.