Why?jvincent said:
Microsoft is offering their OS to all the hardware vendors "out there" and with Nokia, the largest hardware vendor becoming an exclusive Windows Phone partner I don't see these numbers as being unrealistic.
Of course, 5-year out predictions are hard to do, but I think it's realistic for mobile operating systems that are available to all hardware vendors will be more numerous than the OS platforms that are proprietary to a single line of devices (iOS, Blackberry, webOS).
I'm not saying they're right, but when I read their numbers I think "yeah, looking through the visor of 2011 this could certainly happen".
In order for WP7 to have a significantly smaller market share than the IDC prediction, Nokia will need to totally flop when it comes to selling Windows Phone handsets.