Plus Microsoft still has inroads left into the enterprise-managed mobile device space. (Most of the more recently announced non-Microsoft branded Windows mobile devices are things like HP's enterprise focused phone.) Especially with the potential big win of a company's IT being able to manage Windows mobile devices from the same Windows control panels as any other Windows machine in the workplace. Not that there is much territory there to sustain long term (just ask Blackberry), but with all the carriers slowly dropping their phone subsidies it might not be hard to imagine corporate sponsored phones could make a small comeback.