"I'll believe Branson is doing anything when it actually happens."
ROFL, me too, I only included him for shits 'n giggles. Take Virgin Galactic, many years over due, horribly over budget, and still far from it's goals. Oh, and it's development has killed four people (I'm counting the three deaths from the static engine test). So instead of delivering that, he's backing another related venture. I say related, because Skylon could fit both roles, high altitude supersonic flight, or space vehicle, so why Branson is inventing two (sorry, three, there's a launch vehicle version of White Knight) different things seems short sighted.