Sprint got themselves into this same situation before as well, and recently. They made a "material change" to everyone's contracts and had to re-sign folks by offering some sweet deals. I personally got a recurring credit of $20/month for the full 2 years of my contract. And that's on top of the 27% discount I get as a Citigroup employee.
Like the Russian guy says on the Dish Network commercial: "I jumped in it."