I'm going to purchase a used Ativ SE, and I'm wondering if Phone Insider can be used on it. This is specifically about whether or not you can install it in the store, and it functions correctly, opposed to saying the device is not eligible for the app. I understand that the preview itself does not come out until February, and there is no official word on the Ativ SE specifically in regards to Windows 10. If someone who has the phone can install the app and let me know, I would really appreciate it!