Earlier this week T-Mobile announced the Jump subscription plan that allows subscribers to trade in their old equipment -- including iPhones -- twice a year. Following that, Sprint announced that it is now offering new unlimited plans with lifetime guarantees. Called The Sprint Unlimited Guarantee, the plan lets customers lock in unlimited talk, text and data not for just two years, but for life.
The new Unlimited, My Way and My All-in rate plans feature unlimited talk, text and data while on the Sprint
