Yes, I've seen simulations of the wing flex on PBS/Discovery/NatlGeographic, but never in reality. I am going to insist on a window seat and we will hopefully be far aft.
Sorry for us, we have to fly coach. More's the pity, we have a layover at LHR before getting on a ScareBus something or other.
well,, I never saw the wing flex in reality, only on video or PBS specials, anyhow, interesting to say the lest to see how much they test those planes today.