Rumor from the grape vine from inside sources tell me that they are having trouble loading the aircraft, and the delay has problems that have to do with the flight envelope and things like that. The 6 month delay of the aircraft apparently is VERY optimistic, so that's what they were told at the conference.
Apparently they're having trouble finding the CG before they start the engine, or something along the lines like, they can't find it until the engines have been started. Which raises an interesting question, if you can't load plan the loading of an aircraft before the engine starts, can you legally load the aircraft? anyways, that's just what i heard......beleive it or not... we'll just have to wait and see ...