OVERLAND PARK, Kan.– Sprint (NYSE:S) today announced it will offer iPhone 5s, the most forward-thinking smartphone in the world, and iPhone 5c, the most colorful iPhone yet, beginning on Friday, Sept. 20 in all Sprint retail channels. All Sprint-owned retail stores will open at 8:00 a.m. local time on Sept. 20. “The new Sprint Unlimited Guarantee, available with an Unlimited, My WaySM […]