T-Mo USA has emphatically stated that Hero would not come from them. Then again, would they say so if it was? It could result in a lot of wasted promotional funds. Don't get me wrong, I'm still happy to be getting a myTouch, but if I had the choice of a Hero, things would be different. Here's to the hope that this is real.
EDIT: Yarg, it was fun while it lasted, but HTC has assured MobileCrunch that this image is 'Shopped.