Watched it live on the Boeing website. Very cool.
Beautiful jet. I wonder how they're going to handle fuselage maintennance with the carbon-fiber composites though? Long term usage issues are all an unknown at this time. Airlines will be learning as they go, just like they did with Duraluminum back in the 1930's and pressurized cabins back in the 1950's.
^ The plus is engineers know a ton more about carbon composites today then they knew about aluminum in the 30s.