Though it's standing firm on the definition of its original 4G specification -- IMT-Advanced -- which only WiMAX 2 and LTE-Advanced are currently capable of meeting, the ITU is easing off its earlier rhetroic, admitting that the term "4G" realistically could apply "to the forerunners of these technologies, LTE and WiMAX, and to other evolved 3G technologies providing a substantial level of improvement in performance and capabilities with respect to