The HTC HD7 release date in the US on T-Mobile will be November 8. When the phone launches it will have a price tag of $199.99 although if you get it from AmazonWireless you'll get it $30 cheaper for $169.99.
It isn't known at the moment who will ship the HTC HD7 the quickest, so although you might save $30 at AmazonWireless, you might end up waiting a day or two longer. For some, they would rather pay the extra to get it quicker.
The phone its self is a Windows Phone 7 smartphone and is one of the flagship models. It has a 1GHz CPU, 512MB ROM and 8GB of non-removable microSD storage. RAM is set at 576MB. The screen measures 4.3 inches and is capable of showing 480 x 800 pixels in a WVGA format.