前两天 Phone Insider 出现在大家眼前，而微软将在 1/21 透露更多细节；
而一款新的 App 出现在 Windows Phone Store，叫做 Windows Previewer Beta
目前是 Private Beta，无法下载，但是截图还是曝光了
（现在改名叫做 Phone Insider）
The update provisioning application allows users to get early access to the
latest Windows Phone updates for the purposes of providing feedback to
Microsoft on current releases. Feedback is gathered automatically from the
device by configuring your device for early access. For more information see
the terms and conditions below.
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