As a Verizon customer who's been grandfathered into all of the things Verizon has taken from their users (such as cheaper messaging and unlimited 3G/4G data), this would be very disappointing news. I would almost rather there be no iPhone 5 announcement tomorrow with only a 4S than have an iPhone 4S for all and a 5 exclusively for Sprint. I couldn't see them putting all their eggs in one basket, especially not for their flagship device... what I COULD see however is a 4S for Sprint, as well as ATT and VZW, as a migratory device to keep those on Sprint happy with an iPhone on their network and a 5 later for all, so that Apple could maximize profits and keep everybody happy with the releases. It just doesn't make sense monetarily to me for Apple to release their flagship on such a comparatively small network whilst the current moneymakers (ATT and VZW) get stuck with disgruntled users angered at the decision, especially when ATT and VZW have more than enough competitive Android offerings that would likely be chosen by all but the most diehard Apple fans with available upgrades.