Strange. I was just at the 2012 Build conference in Redmond (hey, it's a job) and Microsoft gave each attendee both a Windows 8 ARM tablet and a Nokia 920 developer phone to help get folks interested in developing for the platforms. You want apps? Carpet bomb the developers.... There were a number of sessions devoted to Windows Phone 8 development, and reading between the lines implied that the WP8 SDK is almost there, but not quite. Cross-platform development (desktop - tablet - phone) is not friction-free. To Microsoft's credit they were up front about it. My take? The center of gravity for Nokia application development has moved to Redmond. I predict that lots of phone marketing cash will flow from Redmond as well. Is resistance (from Nokia) futile?