See http://talk.maemo.org/showpost.php?p...postcount=1893 They are selling more, obviously WP is gaining traction, but as to why now and not 3 months ago? Things takes time I guess. They will probably sell less though because they are shifting manufacturing to WP8. They will produce less.
"More likely, it's a tacit acknowledgement that the company's current path on mobile isn't the right answer. To be sure, Windows Mobile needed to go, but Windows Phone isn't working, either. The thinking is that the existing user base, while important and unfortunate to screw over, is still really small. Better to do this now while Microsoft still can, in other words. Existing Windows Phone 7.5 devices will continue to work with the 100,000 apps already available in Windows Marketplace. And developers writing new Silverlight apps will have Windows Phone 7.5 and Windows Phone 8 customers, as the new version of the OS will continue to run Silverlight apps. But apps developed for Windows Phone 8 specifically won't work on existing phones, which means it won't be long before 7.5 users can no longer update their favorite apps. A Twitter user who goes by the name of Natasha wrote that Windows Phone fans defending Microsoft's decision to orphan 7.5 reminded her of Stockholm Syndrome. I find that hilarious, and there's probably some truth to that statement. But whether you agree or not, it's clear Microsoft is at a perilous point, and needed to do something, fast."