Her wave-cutting hull looks like a knife. Also, the DDG-1002 has been confirmed as the first USN destroyer slated to receive railguns in place of the AGS.
http://www.navy.mil/view_image.asp?id=207006http://www.navy.mil/view_image.asp?id=207005
Video: http://www.tampabay.com/news/military/uss-zumwalt-largest-destroyer-built-for-navy-heads-out-for-sea-trials/2256806