Really, I do wonder if the release of Windows 10 for mobile (or however it's going to be named) is going to essentially force all our present apps and ecosystem into immediate obscurity as did WP8 to WP7, or will it all be cross compatible? WP7 wasn't a real large piece of market before doing a platform reboot, so the kernel is changed, WP8 is out, and WP7 becomes short lived. I'm convinced MS's Windows Phone user base is much larger now than it was when WP7 was alive, and I really think another "drop and start over again" move would be fatal for the platform. Anyone have any insights?