I wonder what will happen with that letter of intent for the investment in that boom sonic plane startup. Was that investment announcement somwthing legally binding? (I didn't follow that closely)
The deal with Boom appears to be with Virgin Atlantic, which it a different company from Virgin America, due to the ownership laws that are causing Branson to bail on Virgin America.
Letters of intent usually are not legally binding in any way. I
However, I really don't know about Boom's specific case.