Leap Wireless, the Cricket folks, told us we can expect to see LTE service go live in Tucson before the end of the year -- and by golly, they were bound and determined to do it. Sure 'nuff, the prepaid carrier is now ready to match wits against MetroPCS as it brings its first 4G market and device live with just ten days remaining in 2011. At least 90 percent of Tucson will be able to enjoy the faster speeds, with nearby Nogales, AZ receiving some expansion love sometime in 2