All of T-Mobile's 4G smartphones are free during their Valentine's Day 2012 sale, and that includes the Samsung Galaxy S2 and HTC Amaze 4G. Of course, you have to sign up with a new two-year contract to get that price, and you also have to buy one of the Classic or Small Business plans. Additionally, several other phones are free during the Feb. 11, one day only sale. The entire line-up of 4G-enabled devices, including the Springboard tablet, and three other non-4G phones are free on Saturday.

Samsung's Galaxy S2 and the HTC Amaze 4G are two of the best phones T-Mobile sells, so if you live in one of their 4G areas, this is a great deal. You'll have to go into the local store to get the deal, but there are a couple on Web only deals worth mentioning too. The Samsung Galaxy S is free until Feb. 10 and the LG DoublePlay is free until Feb. 14 in the Web only deal. As to the non-4G phones included in the Feb. 11 sale, they are the HTC Wildfire S, a new Android phone, the BlackBerry Curve 9360 and the LG Optimus T.

So, T-Mobile's best gear is free for one day only, right before Valentine's Day and you now have to pick one. The Galaxy S2 is tough to turn down because it does just about everything really well. HTC's Amaze 4G is also quite good, and features one of the best smartphone cameras in the world, maybe even the best. But, the HTC Sensation is also quite nice, and it's got a qHD display that makes watching videos even better because you won't have to zoom in and cut off the wider parts of the video. Finally, there is the Nokia Lumia 710, and it's also brand new. It runs the Microsoft system, so if you are looking for something a bit smaller (3.7-inch screen) or something really different, that might the one to choose. Tell us in the comments if you think your Valentine would like one of these.

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