Ribs in a pressure cooker? I'm assuming we are talking about boiling them? Gaaaah, that's sacrilegious!
And pulled pork in an hour also sounds impossible unless we are talking a different cut of meat vs the usual butt?
Not sure about this thing. There's very little I boil, although the Chili in 45 minutes does pique my attention.
edit: nevermind re the ribs, I see you were referencing a smoker at the end. That's more my speed.
I still can't see pulled pork in an hour though, even a small butt smoked or baked properly can take 8-10 hours.