What's unique about the HTC Surround is that it features slide-out Yamaha speakers with surround sound. Though we were in a noisy room for the launch event, we could still hear music coming from the speakers. We'll have to wait till we get the phone in for testing to really judge the quality, however.
Windows Phone 7 brings a much improved mobile browsing experience with Internet Explorer 8. Though we found it rather slow during our technical preview, the Surround did a pretty decent job of loading CNET's full Web site.