T-Mobile customers will have an option for a cheaper Even More Plus plan starting April 13, according to a leaked document on TmoNews. They will now have an option of $59.99 a month for unlimited talk, text, and data--it used to be $79.99 a month. However, the document indicated that even though the data is "unlimited," T-Mobile will throttle data speeds after 2GB.
T-Mobile's Even More Plus plans are for T-Mobile customers who bought their phone at full price so they can pay less each month, which can save money over time. Even More Plus plans aren't advertised as much on the website, but you can inquire about them at a T-Mobile retail store.