As reported previously, Windows Phone 7 will launch in the US on November 8.
The October 11 date that the WSJ and others are reporting is “just the PR break,” according to my source, or “the date at which US phone models will be announced.” This will include AT&T at least–they’re Microsoft’s premier Windows Phone partner in the US–and possibly other carriers. (The WSJ says AT&T is it at launch.)
But the phones are launching November 8.
I’ve noted on the Windows Weekly podcast that Microsoft holds an annual event, called the Open House, at which it touts its consumer oriented products for the holiday season. This year’s event is happening on October 11 in New York City, which is the same date and place others are reporting for the US “launch” of Windows Phone. There is also a party scheduled for that evening, suggesting this is a bigger than usual Open House. But I still don’t know if the Windows Phone announcement happens at the Open House or is just coincidentally scheduled to happen concurrently.
Regardless, the right way to think about this is that October 11 is the announcement. November 8 is the launch.