uh....

sprint has a decreasing EFT.
Learn about Early Termination Fee
Yep they pro rate it, but when you put all the cards on the table, it looks like carriers are dealing from the bottom of the deck. A bill was being passed (
legislation S2825) to legally force carriers to prorate fees but was ultimately dropped with a back room hand shake and the carriers agreeing to do it. The problem with that kind of crap is while the big boys agreed, not everyone did got
Google some FCC love over the Nexus 1.
During the FCC probe they determined the carriers actually prorated on average $14.33 per phone and the average cost to sprint per cancelled contract was $9.18. They also found that a 60 month subscriber to sprint, over the lifetime, brought $3,665 in revenue while costing Sprint $357 in support, advertising, etc. (
Source 2010 FCC inquiry)
You can read the FCC inquires and carrier responses
HERE
With all that said, if you sign a contract, I have no sympathy and my response is lay in your bed. But, that's exactly my point in that by me eating the cost of the device up front I'm empowered to react with no fear of financial ramifications.
I do like what T-Mo does though where if you pay MSRP for a phone they reduce your monthly costs because they aren't carrying any subsidy (liability) for your business.
EDIT - Thought I should clarify a little. My intention wasn't to bash Sprint, I love Sprint, rather to explain why I don't view any carriers pro rated ETF as being consumer friendly because the consumer is basically the only one with any form of "skin in the game". I understand not everyone has $600 to spend on a phone, and contracts are a good thing for some. It's just when I look at the information, it's clearly not a mutually beneficial contract and any tiny bit of leverage i can add to my side I'm going to take. Again, I feel no pitty for those who do accept a subsidy, do sign a contract, then complain about things like ETF.