According to a post at the Windows Phone 7 blog, Microsoft’s latest operating system is now fully cooked and ready to consume. They’ve shipped off the masters to manufacturers. The die is cast. And now they can start work on changing the die up all over again!
I mean, chances are there was a feature freeze maybe six months back, and their efforts have been entirely directed at testing, bug-squashing, and so on. Now all those pet projects will be picked back up again, and they can start working on all the apps and features for WP7.1. And so the great wheel turns.