From footnote #2 on the new plan announcements.
Introducing Sprint One Up
Introducing Sprint One Up
2 The guarantee applies to customers as long as they remain on the Unlimited, My Way or My All-in plans, meet the terms and conditions of the plan and pay their bill in full and on time. Price and phone selection are subject to change. Other plans may receive prioritized bandwidth availability. Streaming video speeds may be limited to 1 Mbps.