""Today, Sprint offers 4G service in only one test city: Baltimore, Maryland. Although that service is rated at a peak of 12Mbps, the company readily admits that true download speeds are more average more in the 2-to-4Mbps range - which still beats the pants off most 3G services.""
What utter BS.
You compare how the iPhone (a 3.6 Mbps/R99 HSDPA handset, where your hand steals about 6db from the precious HSDPA link budget, not the 7.2Mbps/1.4Mbps USBs that most people are using for MBB) compares on masses of well loaded voice and data networks, and compare this with a data-card or Fixed Wireless Terminal on a lightly loaded 'state-of-the-art' WiMAX network!!!!!!!
Have you not heard of Telstra , holder of the Guinness Record Fastest NATIONAL Mobile Broadband network, in case you forgot
( http://www.telstra.com.au/abouttelstra/media/announcements_article.cfm?ObjectID=44442 )
There is no such thing as 4G yet, so all you can go by is the experience, not some poncy self-styled moniker, and Clear's network is solidly in the 3G class, albeit with a few % of the device choice, no 'phones' and relying on a technology it solidly derided (CDMA) to provide roaming coverage. 'Up to 150 Mbps' for WiMAX would be 'up to 200 Mbps' for HSPA+ since with will scale to 160Mbps down, 40Mbps Up. Of course just like WiMAX, today's devices won't be able to support those speeds, but the technology potential is just as ripe, and has more vendor and operator backing to ensure that potential is delivered.
FAIL. Please hand back the 'promotional consideration' you took for publishing this tripe!