It's been a slow news day for most of the tech industry, but it's been a helluva Monday for T-Mobile. First the carrier announced expansion plans for its fledgling LTE network, and said that the Galaxy Note II would be getting an over-the-air update allowing it to take advantage of T-Mo's new 4G speeds. Now, Big Magenta is planning a press event for March 26th in New York City, reports AllThingsD. As you can see, the invite promises the wireless operator will no longer be acting like one, which makes us think a splash