I think some of you are right little ar$eholes to suggest that people travelling with children shouldn't get free priority boarding. Shame shame shame on you!
I think that all children should be given seat numbered boarding cards in one area of the aircraft eg down the back. Nothing more annoying after a busy day than a kid screaming in your ear for an hour or two.
If all kids seated down the back (accompanied by their parents/guardians of course) they could then scream til their hearts content and not annoy the businessmen down the front.
As it is, kids randomly placed throughout the cabin usually set off a domino effect and the screaming ripples throughout the cabin, much to the annoyance of all!!!