Agree that this would be important except that there's basically ~no work being done on supersonic trans-Pacific flight. Boom's design doesn't have the range to operate trans-Pacific, and AFAIK there has never been any supersonic passenger aircraft (built or designed) that has had the range to pull it off.
I do agree though, LHR-JFK holds very little fascination for me. It's a relatively short flight with a lot of ground-side overhead time, so the benefits of Going Very Fast seem pretty minimal. The prospect of SFO-HND or LAX-ICN very fast though seems a lot more appealing.
