[eight_ender]

Microsoft would have to provide a compelling reason to use their own app store and other services that would replace the Google ones.

That's not to say it's impossible. Microsoft has been doing a lot of mobile development lately, and if you were trying to build a case for losing the Google Play store Office, Skype, and other business apps are a good place to start.

The pessimistic part of me thinks that BYOD is so prevalent these day that a pure "business phone" locked into the Microsoft ecosystem just wouldn't work. Maybe five years ago it would have appealed to enterprises wanting to roll out a fleet of employee devices but now a phone needs to be as appealing to the consumer as the business.