It's always exciting to see a new operating system like the one we found in the HTC Surround, offered in the US by AT&T. This is a Windows Phone running Microsoft's newly developed Windows Phone 7 operating system. Microsoft has positioned its Windows Phone 7 operating system to go head-to-head against Apple's iOS operating system and Google's Android system. The Surround also has some unique hardware features including 16 GB of internal memory and a unique slide out speaker bar that offers "virtual surround" audio processing. We took a look at the HTC Surround hardware as well as the Windows Phone 7 operating system. Check it out.