Vivato, a start-up based in San Francisco, raised $44.5 million in third round funding for its Wi-Fi switches. The new funding was led by Advanced Technology Ventures (ATV), joined by all of Vivato's previous investors, including Leapfrog Ventures, U.S. Venture Partners, Walden International and Intel Communications Fund. http://www.vivato.netIn March 2003, Vivato introduced its 2.4 GHz Outdoor Wi-Fi Switch capable of extending outdoor coverage for up to 4 km. The Vivato switch can penetrate exterior and interior walls to provide Wi-Fi coverage...