Dave, I think "all of us here" being arranger keyboardists, should be cheering that as a historic 'arrange keyboardr' occasion.

Donny, you need to realize it was Keith Jarrett himself that took more than a casual interest to stop to checkout the Tyros 4 keyboard, and then drawn to sit down and jam on it too. It's obvious from the clip that he took more than a passing interest in it, as he continued to ask questions and play even more after the videoclip ended. Keith Jarrett may mean nothing to you, but millions of keyboard musicians around the world look up and respect him as both a jazz and classical keyboardist legend.

That said, I would have also been impressed if it were Jon Lord showing interest in Tyros 4 too, and I bet if he were there, he would too.