In case you missed it, T-Mobile plans to launch their own 4G LTE (Long Term Evolution) wireless network in 2013 to better compete with Verizon and AT&T. While they are obviously a little behind they’ve been hitting it hard and have just announced their initial trials and testing will begin this summer, starting next month.

T-Mobiles Senior VP of Technology, Dave Mayo, gave a quick update and progress report on the networks continued efforts to expand into the LTE market earlier today. More details are available at T-Mobile’s Blog. The details confirm their $4 billion dollar plan with LTE, and the fact that by the end of June they’ll have over 400 cell sites upgraded to LTE capabilities, and expect that number to reach 2,500 by the end of July.

Dave Mayo later went on to state that their LTE is moving along quite well and that “release 10 trials are set to begin this summer with broad LTE deployment on track for 2013.” T-Mobile currently doesn’t offer any 4G LTE capable smartphones, and their upcoming Galaxy S III won’t be either. Most likely we’ll see a few MiFi hotspot devices show up first with support, then slowly some T-Mobile LTE smartphones around very late 2012 or early 2013. It’s a slow process but more options are always welcomed, especially with some of Verizon’s recent changes.