1. I read somewhere that women will not get any men as one would expect under normal logic - they would be treated like queens while their husbands enjoy 72 big breasted virgins and 28 beardless young boys (yes, thats the true promise - not just 72 virgins). When asked if women would feel cheated at their husband's philandering - the answer is that no they wont - because in jannat there would be no space for negative feelings like jealousy etc.
2. Good question - but you miss the point - the 'hoors' are not manufactured on earth - they are produced in a factory in jannat - so when the pressure is on - the production line would work overtime - the quality may be compromised a bit to meet up the demand - but heck - a promise is a promise !! LoL