IDG Answers is a community of experts who are passionate about technology. Ask a question or answer one below.
This is kind of a dumb question. Sure, it's easier to support one or two operating systems, but with all the development that has been happening in the mobile space since the iPhone came out, it would be short-sighted to limit the function of what an organization can do under some preconceived notion that things need to be simple or easy. A smartphone is not an electric typewriter - and as such, it may be used for a variety of activities. Smart IT departments will find a way to deliver better service across more platforms without whining about how it isn't easy. If you're doing you job right - using IT to move your business forward - IT is never easy.
That's kind of a dismissive take on the problem of OS propagation within an organization. I've worked for a number of companies where the IT department chose the computer you use and the phone you use and the software you used - because for them, it's better to define a few standards rather than letting the company's infrastructure to resemble the Wild West. Homogenization exists for a reason - to streamline the day-to-day labor of IT - which leads to the free time one needs to work on longer-term, big-picture projects.