Windows Phone 7.  It's the newest operating system on the market, and it's coming in full force this holiday season.  If you're interested in the new platform and you haven't seen the HTC Surround unboxing and first impressions article, be sure to check them out!  

For those on AT&T, which Windows Phone 7 are you going to buy (if you're going to buy one at all)?  Cast your vote and hit the comments with your thoughts!