T-Mobile’s 10th anniversary as a wireless brand in the US isn’t our reason to celebrate today as today also marks the release of their “Unlimited Nationwide 4G data plan,” introduced back on August 22nd.

“We’re big believers in customer-driven innovation, and our Unlimited Nationwide 4G Data plan is the answer to customers who are frustrated by the cost, complexity and congested networks of our competitors,” said Kevin McLaughlin, vice president, marketing, T-Mobile USA.  “Consumers want the freedom of unlimited 4G data. Our bold move to be the only wireless carrier to offer an Unlimited Nationwide 4G Data plan reinforces our value leadership and capitalizes on the strength of our nationwide 4G network.”

T-Mobile’s new plan “empowers customers to unleash the power of their smartphones by making fast, nationwide 4G data accessible and affordable.”

That’s not all, to help customers take advantage of this offering, customers activating a new two-year contract on an Unlimited Nationwide 4G data plan (Value Plan only) will be able to benefit by picking up an HTC One S with a $0.00 down payment, after a $50 mail-in rebate.

One interesting note in the press release below is the mention that T-Mobile customers can “bring their own compatible smartphone and have access to a worry-free unlimited data experience on T-Mobile’s fast nationwide 4G network.” Combine that line along with the recent increase in bringing unlocked iPhone news over to T-Mobile and perhaps a network refarm launch is getting close.

“The Unlimited Nationwide 4G Data plan will cost $20 per month when added to a Value voice and text plan or $30 per month when added to a Classic voice and text plan. For example, a single line Value plan with unlimited talk and text combined with unlimited nationwide 4G data will cost $69.99 or a single line Classic plan with unlimited talk, unlimited text and unlimited nationwide 4G data will cost $89.99.”

Hit the full press release below for the rest of the details. Also check out the T-Mobile link below for the company’s first commercial promotion Unlimited Data.

Full Press Release:

T-Mobile USA, Inc., today announced an industry first — a truly Unlimited Nationwide 4G Data plan. Featuring no data caps, speed limits or bill shock, as well as fast, dependable nationwide 4G coverage, T-Mobile’s new Unlimited Nationwide 4G Data plan offers the ultimate worry-free experience. The new plan is designed to satisfy both data-hungry customers who want to experience all their smartphones are capable of and those wanting the peace of mind of never having to keep track of their data usage.

Today’s smartphones offer amazing experiences, and consumers are increasingly relying on them for everything from navigation, entertainment and shopping to just staying connected. With the introduction of the Unlimited Nationwide 4G Data plan, T-Mobile^® is the only U.S. carrier to empower customers to do what they want, when they want, with their smartphones by making fast, nationwide 4G data accessible for everyone — without limits and at a great value.

“We’re big believers in customer-driven innovation, and our Unlimited Nationwide 4G Data plan is the answer to customers who are frustrated by the cost, complexity and congested networks of our competitors,” said Kevin McLaughlin, vice president, marketing, T-Mobile USA.  “Consumers want the freedom of unlimited 4G data. Our bold move to be the only wireless carrier to offer an Unlimited Nationwide 4G Data plan reinforces our value leadership and capitalizes on the strength of our nationwide 4G network.”

For customers seeking an unlimited experience on their smartphones, T-Mobile offers several ways for new and existing customers to take advantage of its Unlimited Nationwide 4G Data plan. New customers can purchase any smartphone in T-Mobile’s robust lineup of innovative devices or bring their own compatible smartphone and have access to a worry-free unlimited data experience on T-Mobile’s fast nationwide 4G network. Current T-Mobile customers on Classic or Value plans can simply upgrade their existing service by adding an Unlimited Nationwide 4G Data plan.

The Unlimited Nationwide 4G Data plan will cost $20 per month when added to a Value voice and text plan or $30 per month when added to a Classic voice and text plan. For example, a single line Value plan with unlimited talk and text combined with unlimited nationwide 4G data will cost $69.99 or a single line Classic plan with unlimited talk, unlimited text and unlimited nationwide 4G data will cost $89.99.

Available starting Sept. 5, T-Mobile’s Unlimited Nationwide 4G Data plan will provide smartphone customers with uncompromised, dependable access to data on the blazing-fast speeds of T-Mobile’s nationwide 4G network. The Unlimited Nationwide 4G Data plan will be available at T-Mobile retail stores, on http://www.T-Mobile.com/unlimited-data-plan and through select dealers and national retail stores.