Apple are not willing to sell anything at a loss. Do you even know the insane profit margins on the iMac and iPod? I don't, but I know they are insanely big.
Why would Sony leave the console business? They are way more successful than Microsoft in the gaming business. All they would need to do next gen, is to release a console for $299 at a profit. That would guarantee at least second place. Neither Microsoft or Apple would stand a chance against that, only Nintendo would.








