Ultrawideband Heralds Zippier Wireless Connections (Reuters) Reuters - Think of it as Wi-Fi on steroids.\On its way to U.S. living rooms and maybe even automobiles is a\new type of high-speed wireless connection that promises\downloaded data rates of up to 1 gigabit per second -- roughly\18.5 times the speed of Wi-Fi -- to personal computers and\other devices.