Re: I think Apple have under estimated how meant people run windows on they Mac...
They are probably completely out-numbered by the people who want to run iOS stuff on their laptop.
I look at this debate as the same thing that happened when Apple dropped the built-in floppy disk drive. Then the built-in CD drive. In a few years' time people will be scratching their heads at the concept of having different processor architectures between desktops and mobiles. Albeit PCs will probably need both x86 and ARM chips.