I'm curious how the planes are going. Looking it up it seems th XB-1 prototype did mach 1.1 but then they retired it which seems odd as it's design was for mach 2.2 and a 1000 mile range. If they could say to investors we said 2.2 and look, it really happened than might be a better sell?

The top speed is interesting because they are claiming to go fast with relatively little power due to superior aerodynamics which would be more convincing if they demonstrated it.