In order to introduce love-themed promotions and programming for Valentine's Day, T-Mobile USA, Inc., is offering its customers affordable unlimited calling, texting and data plans exclusively for two days.

On Friday, Feb. 11 and Saturday, Feb. 12, all T-Mobile (News - Alert) phones, even the fastest 4G smartphones running on America’s largest 4G network, will be offered for free at T-Mobile retail stores to customers with a two-year contract.

In an effort to broaden its customer base,  T-Mobile has also teamed up with New York Times best-selling author and TV personality Khloé Kardashian to promote its service. If you want to watch a special Valentine’s video starring Khloé, visit T-Mobile’s YouTube and Facebook page on Wednesday, Feb. 9.

With the Valentine’s promotion, T-Mobile is giving its most connected customers options that take advantage of the latest devices. Now, consumers can choose from a selection of 30 devices, no phones excluded, including a variety of brands such as HTC, Garmin, Motorola (News - Alert), Nokia and Samsung.

All phones will be available while supplies last, so customers are encouraged to arrive early to stores to secure the latest and most popular new devices, including: Samsung Vibrant, T-Mobile G2 (News - Alert) with Google, HTC HD7, and T-Mobile myTouch.

John Clelland, senior vice president of marketing, T-Mobile USA, said that smartphones offer people incredible flexibility to stay connected and express their love to the people that matter most. T-Mobile’s Valentine’s promotion makes it easier for anyone to get their favorite smartphone and keep connected on America’s largest 4G network.

For more information regarding promotions and a list of participating stores, visit T-Mobile online.

In other company news, TMCnet reported that T-Mobile USA, Inc. and Samsung (News - Alert) announced the anticipated February availability of the Galaxy S 4G, exclusively from T-Mobile