Hi!
Thanks for your comment, and sorry for late reply!
About the youtube player, currently only shows new-age stuff, but it will be a full youtube player without limitations.
You can activate private-mode checking the box that says "Hide mirror to PC" at Settings.
About reading books in VR, one question, where would you like the most to read books? Space room, medieval room at a castle or something else?
And thanks for your suggestions!