Lets see, Mach 0.98 or Mach 2.02?
Gordon's right, the Concorde story is an aviation soap-opera classic.
It was probably the last major airliner designed without substantial computer aids.
It could have sold better, but bad luck in timing (the 1970's oil crisis), and an element of 'Not Invented Here' from across the Atlantic, (after the B2707 got axed), very nearly made it a stillborn project, along with the usual British habit of cancelling projects.
In that respect Concorde showed the way forward, European collaboration was the only way for the UK to still be a player in airliner construction-even that lesson took some time to sink in.
Every time the aircraft roars into the air, to me it's like giving all those who tried to stop it the finger.
The SC is coming into a very different political and economic enviroment.
I just hope those who board it don't expect a 3.5 hour trip across the Atlantic!
(Boeing will probably call it the world's fastest airliner!)
Of course the SC will be a much more versatile, flexible aircraft.
It will be interesting to see if later versions will be capable of Mach 1.2 or thereabouts.