Bigger, faster, extraordinary; these are the words that T-Mobile has chosen to describe the HTC HD2, and I completely agree (and it sure does beat “magical”). All those iPhone owners out there, who want the HTC HD2, need to pay attention now. As we told you before, you can trade in your iPhone for cash towards your HTC HD2 purchase. Details are emerging, outlining why you should switch to the HTC HD2, and how much your old iPhone will help you towards your goal. Seems like, you will get at least $100 (on average) towards your purchase, and that is with that outdated 4GB iPhone 1st gen. Once again, you will get $350 for the latest and greatest 32GB iPhone (consult the image above for further inquiries). Take advantage of this great offer by June 19th (also known as right before NEW iPhones are released). Now, let’s just hope they can actually keep the HTC HD2 in stock now. Larger image after the jump! Leave your thoughts in the comments!