http://en.miui.com/thread-94125-1-1.html
Through a new program with Xiaomi, one of the top smartphone
distributors in the world, a select group of Xiaomi Mi 4 power
users will be invited to help test Windows 10 and contribute to
its future release later this year. These power users will have
the opportunity to download the Windows 10 Technical Preview –
installing it and providing their feedback to Microsoft.
微软的另一种攻势.
未来小米 4 将能"升级"成 WP10, 或有可能直接贩售预载 WP10 的手机.
微软会先在小米社群内挑选一些使用者, 协助进行适用及测试.