Something that corporations around the world would deploy to every single employee in a heartbeat?
That's not necessarily up to IT anymore, thanks to the iPhone. To achieve your goal, they would have to build something that those employees insist on bringing to work under pain of termination, as they did the iPhone.
Nothing in Microsoft's DNA -- and specifically in Steve Ballmer's DNA -- would permit the creation of such a device.
I think iPhone started the BYOD movement because it was so much better than the rest of the devices for quite some time. Its only now that android and windows phone are catching up. If you see there are only marginal differences between the top of the line devices now. So the "insist on bringing to work" that you talk about is not strong enough as long as the device is a easy replacement. Both Android and I think windows phone with v8 are getting there. So IT should not feel resistance to deploy these. Besides with Microsoft's familiarity and IT friendly tools and mindset, they might actually favor a windows phone over iPhone which does not have features such as company specific app store.
Another aspect of BYOD is that companies aren't paying for phones any more. I don't think they'll ever go back, even if someone could develop a mullet phone that pleases both consumers and IT.
That's not necessarily up to IT anymore, thanks to the iPhone. To achieve your goal, they would have to build something that those employees insist on bringing to work under pain of termination, as they did the iPhone.
Nothing in Microsoft's DNA -- and specifically in Steve Ballmer's DNA -- would permit the creation of such a device.