Personally I find this latest update from Verizon very interesting. According to Fran Shammo, CFO of Verizon Communications Inc, only 5% of their customers are currently using 4G devices (via WSJ). This reminds me of a few years back when carriers were making the switch to 3G and RIM waited until they could do 3G without all of the compromises (horrible battery life) in the Bold 9000. Verizon has been running and promoting their 4G network for over a year and the first and second round of devices (mostly Android) have been plagued with abysmal battery life.
Quite a few device makers including RIM and Apple have been holding off for an integrated LTE system on a chip from Qualcomm in the second half of this year. With Verizon right on the turning point of early adopters and just passing the 2nd standard deviation in a standard early adopters bell curve we might see the second half of 2012 turn into a 4G tidal wave. I know Apple releasing a 4G phone will be a huge tipping point but RIM has also promised 4G BlackBerry 10 devices coming around the same time.
Anybody else waiting for a 4G BlackBerry that does not have the current compromises of having to live near a charger 24/7?