They've raised their text messaging rates from 15 cents per message to 20 cents per message for those who don't have a bundled plan. This constitutes a "material adverse" change to a contract which means, in plain English, they changed the contract which means you're no longer obligated to uphold your end which means you can get out of it without paying the early termination fee of $175 per line.
This really works. I got my sister out of her Verizon contract last time they bumped up the rates. It was something like 75 cents more for one of those extra fees they tack on.
They said that it was so small, what did it matter? I said, "If it's such a small deal, why are you bothering to add it to my bill?" They offered to credit us the 75 cents per month back. I was insistent that it was a material change and we were tired of being nickled-and-dimed and we wanted out. I was nice about it, but firm. It worked.
So if you want to stick it to the man, now is the time to do it. Actually, the time to do it is 60 days within the time they send you notification. Better to do it sooner than later.
More details can be found here.