You might want to treat this with a small dose of skepticism, at least until we hear official wording from Sprint itself, but according to the leaked document pictured above, Sprint will start offering iPhone trade-in credit given you grab the latest iPhone 4S. The program should kick off today and run through June 30; it should address both new and existing customers, given you sign a two-year contract and add a new line.
At least $100 is what you’ll get in credit for any iPhone, the exact amount probably depending on the model, condition and specs (as in internal storage). If you fancy an iPhone 4S and you think the Now Network is the way to go you might want to take advantage of this opportunity. Again, there’s no official wording yet but should be out soon given the start date from the leaked document.