I don't understand how making Apple software and services available on non-Apple hardware would drive sales of Apple hardware. Could you elaborate?
(iTunes was available on Windows but to drive iPod sales, not Mac sales.)
(iTunes was available on Windows but to drive iPod sales, not Mac sales.)
Also, if Page and Keynote are available on Windows, since they are significantly cheaper and probably have all the functionality for majority of the users, it could take bite of the Office market share.