The Catch Behind T-Mobile's Unlimited Data Plan

"Finding the right balance between supply and demand has created some interesting financial and lifestyle choices for subscribers to smartphone data and mobile broadband plans. For example, T-Mobile on Wednesday introduced a new Even More plan for its smartphone customers. The plan offers unlimited voice minutes, unlimited text/video/picture messaging, and unlimited wireless data for the fee of $79.99 per month."

"If that sounds too good to be true, it sort of is. There's a catch, you see. Users who consume more than 2 GB of data in a given billing cycle will see their mobile broadband speeds throttled until the start of the next billing cycle. T-Mobile hasn't said how slow things will get, but I've been told unofficially that it will be akin to "EDGE" (think iPhone circa 2007) speeds (around 100 Kbps to 150 Kbps)."