I think it almost serves stuck-up RIO holders right. If they hadn't of keep telling BHP that their offers were "undervaluing" the company, they wouldn't be in this situation.
In defense of Rio Tinto holders we never got a chance to vote on the take over offer. The board of Rio rejected the offer but I can say for myself I was checking daily to see if the take over offer was going to go through so I could pick up my 3.4 BHP shares.
Now I will never get that chance.