Sometimes I think that Microsoft is its own worst enemy. And I also think that whether it’s Microsoft banning Apple products or Apple banning use of Windows products, both entities are both nuts. Use what works.
And it is possible for people to use Apple products, yet still prefer using other Windows products as well. Sadly though, I do not believe Microsoft is alone in living in la-la-land. No, I have seen Apple among other companies taking such a toleration approach. The difference seems to be that Microsoft is generally the one in the spotlight about it.
As for the issue specifically with the iPhone vs Windows Mobile, I think the biggest problem is Windows Mobile is trying to convince people to do things its way whereas the iPhone has clearly presented things in such a way as the end user wants the. Not to say the iPhone is perfect, just that it appears to “get it” more than Windows Mobile at this point.