You need to pose as a developer, as the system is currently available for developers to get their apps working for the system ahead of its full release. There are ways to get Windows Phone 8.1 for your phone right now, though.
The official public release happens this summer. Mobiles like this will get an update, but we’re unlikely to see it until much later this year. However, you can’t simply download the software if you’re an average person with, for example, a Nokia Lumia 925 phone.
It offers lots of new features including Cortana, a new digital voice assistant that sounds a good deal more advanced than the iPhone’s Siri.
