The long-awaited T-Mobile HTC HD2 is finally up for sale. T-Mobile’s version of the HTC HD2 has a little more internal memory and a different 3G chipset than its European counterpart, but all other hardware specifications remain the same.  The T-Mobile HTC HD2 features a 4.3 inch capacitive touch screen, 1230 mAh battery, 1Ghz Processor,…