Re: 4G is > 100Mb/s
Your title is incorrect...
"Typical download speeds in capital city CBDs, associated airports and selected regional areas are from 2Mbps to 40Mbps"
That's way short of your 100Mb/s.
The ITU did change the definition slightly.
"On 6 December 2010, at the ITU World Radiocommunication Seminar 2010, the ITU stated that LTE, WiMax and similar "evolved 3G technologies" could be considered "4G"."
The press release...
"As the most advanced technologies currently defined for global wireless mobile broadband communications, IMT-Advanced is considered as “4G”, although it is recognized that this term, while undefined, may also be applied 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 the initial third generation systems now deployed."
To me it looks like they caved in to pressure from the industry desperate for its next new buzzword fix. But change it they most certainly did by allowing non IMT-Advanced technologies to wear the badge.