Lyman, I get what you are saying, No I don't think this is an issue in the Bus. At least not any more so than any other EFIS/"tape for speed and altitude" aircraft. The initial upset could have happened in any airplane that uses computer generated flight instruments. If I remember correctly ( I don't live and breath this accident and don't have the time to look back at the BEA rpts), the A/P gave up and gave the airplane back to the pilots while the aircraft was still stable. I have followed your thoughts and don't have any idea if you are correct. Hopefully we will learn all the facts when the final reports are issued.