According to several, leaked internal screen shots obtained by TmoNews, the highly-anticipated NoDo Windows Phone 7 update could begin rolling out to owners of the T-Mobile HTC HD7 smartphone as soon as Today. Users should start seeing a pop-up notification alerting them of the update, at which point they’ll need to connect their phones to a computer and install the update through Microsoft’s Zune Player software. NoDo will bring copy/paste functionality, improvements to Wi-Fi and the camera, along with several speed and performance enhancements. For now this is just a rumor, but it’s entirely possible given that Microsoft began pushing out the NoDo update in Europe last week. We’ll be sure to keep you updated if we hear more on NoDo being deployed to the HD7 today.