not quite. a good portion of mac users also have windows in some incarnation, either on the mac or pc boxen. besides MS real money does not come from the consumer but business and government, just take a look at the liscence scheme. does CAL ring a bell? the point being that there is no threat to microsoft other than microsoft (looking at you ballmer). Apple will never fly in the enterprise, I know I work there. sux but is the truth.