While we're at Windows Phone I must say I miss Windows Mobile. Always found the decision to kill it and replace with Windows Phone a total disaster. At the time it still had a very dedicated user base built over many years. It got replaced with a half-baked copycat OS. I doubt many WM users had any reason to switch to WP instead of Android. It was a completely different product. Microsoft basically threw away a dedicated niche audience for a different niche audience. And I don't have any data on this but I suspect WM users were a much more affluent, valuable and "Microsoft'y" group of users.