This is bonkers!
Why isn't this being handled/reviewed by the Forum Bar?
The subject is a Brit, that ran a Brit company, in Britain.
HP went bonkers and over paid to buy his company. They bought a British company, from a British person.
It seems entirely reasonable that HP should come to the UK and make their complaint here - but perhaps that doesn't suit them because they think they will get a different/better outcome from a US judge?