Basically they're making a big hooptie do over investing about $5.5mm over three years. (That's million, not billion). That wouldn't buy the paper clips needed to support a project to design a working 300 pax supersonic plane. This is a PR stunt, nothing more.

I missed the chance to fly Concorde and would like to believe that I'll have the chance to fly supersonic in my lifetime... at this moment however my the highest likelihood of that being possible is through a ride on SpaceShipOne, not this work of fiction.