Edit: This information is outdated! Recently, Microsoft have introduced new "Dev Center Benefits" program. If you're a serious app development expert, as past of this program you can create developer account in the Windows Store or the Windows Phone Store for free. But then you need to publish application in one of those stores. To get free account you need: Go to Dev Center Benefits Press "join" Sign in with your microsoft account (or create new one) Fill all necessary information. Create  Wind...