A:AnswerYes you can, it's been a really long while since bluetooth technology allows to connect several devices at the same time. Unrelated to your question but worth mentioning is the fact that you can also stream your VR content to the Chromecast so other people can see the action!
A:AnswerIf download the movie to your SD card, you can watch it. I don't think you can watch Netflix, but I would not be surprised if some one developed an app to allow that to happen.
A:AnswerIt appears to be, but the focus dial has more range on the version Best Buy sells. I have had both the launch version from Samsung and the BB one sold.
A:AnswerNo it will not, in fact I take off my back cover while using my gear vr because anything you can take off will aid in over heating issues. This is not a finished product so you will need head phones, and a game pad as well of you want to experiment with the gear.
A:AnswerIf you read the description fully it is right there in the title. The are two versions, Note 4 and the Galaxy 6. Wasn't even remotely ambiguous for me.