We'd not-so-secretly hoped that carriers would be looking to dispense with those troublesome 5GB caps on so-called "unlimited" 3G data plans, but there's a big problem with that: spectrum is still limited, and even though 4G technologies help use it more efficiently, it's still a constraint that the FCC is going to need many years to solve. We're not sure how much the spectrum crunch really factors in here, but in addition to his comments on Droid Incredible inventory problems, Verizon Wireless boss Lowell McAdam mentioned at a Barclays Capital conference this week that he ho
