Microsoft's definition of family is extremely generous - in short it can include your friends, and doesn't appear limited by geography.
See the "It's a 'family' affair" side box: http://arstechnica.com/gaming/2013/06/microsoft-defends-the-...
See the "It's a 'family' affair" side box: http://arstechnica.com/gaming/2013/06/microsoft-defends-the-...
That is nice. Just wondering how it works, hope you can lend a game to someone. Not that if your library is shared any one of you 'family members ' can play just any game form your library at any time, would totally suck since only one can play the game at the time.