I agree that the ref should be hung!
The one thing about Khan is that he isn't stupid and think IF there is a rematch then he'll have an extremely good game plan which will pay dividends. You could almost see him change his strategy mid-way during the fight as he was struggling to cope with Peterson working on the inside.
I don't know much about Peterson, however, from that fights he came across as more of a "banger" who just likes to get in close and go to work. I don't know whether he has the technical ability to change strategy if Khan comes up with a game plan which stops his using that tactic
Unfortunately, there's very little boxing on the tele in the UK these days so I've no idea if it's a contender for FOTY....but it was definitely one of the best fights I've seen since Calzaghe fought Lacey (albeit for completely different reasons).
What I did think was slightly "strange", although I'm probably reading too much into it is how, before the start of the last round, Peterson's corner said "THEY say you can win this, but you've got to give them 3-minutes", or words to that effect. Then, when he was obviously losing the round the ref jumps in and deducts a point. Like I say, I'm probably reading too much into it, but it seemed a bit suspect.
All credit to Peterson though, Khan's probably pissing blood big time at the moment!!!