If the "unlimited" data currently offered by T-Mobile that gets its speeds throttled down all too soon has failed to satisfy, there may be relief on the way. TMoNewshas obtained pictures of a flyer indicating the carrier will introduce a new Unlimited Nationwide 4G Data add-on ($30 for Classic talk and text customers, $20 for Value) that allows for actually unlimited usage of 4G data. There is of course always a fly in the ointment, and in this case it's that it doesn't alow for Smartphone Mobile Hotspot usage, so if you're hoping for official tethering support you'll need one of the other packages.
Engadget , T-Mobile leak suggests 'truly unlimited' 4G data service add-on launching September 5th (Update: Official!), T-Mobile leak suggests 'truly unlimited' 4G data service add-on launching September 5th (Update: Official!)