when I upload videos I always upload them in a 16x9 format and they then get letterboxed. Not any more!!! Pretty cool. http://www.youtube.com/watch?v=qurdlByDoAQ click watch in high quality. I uploaded that at 640x360, From now on I will do it the full 1280x720 because it will look better scaled down than blown up! pretty cool that they are doing that.