It would be rather restrictive if only Gold accounts could have multiple users.
Hopefully we'll get more details at E3.
Oh, and here's AnandTech's look at the Xbox One's hardware, along with a comparison to the PS4's:
http://www.anandtech.com/show/6972/x...-playstation-4
---------- Post added at 21:12 ---------- Previous post was at 20:59 ----------
Similar article, from ExtremeTech:
http://www.extremetech.com/gaming/15...d-and-analyzed