I'm currently an att customer but am contemplating moving to tmobile to take advantage of the new family plan and save $40+/month. I'm curious though-what are the exact terms when it comes to "family"? I can't really fine anything specific on their website. Has anyone signed up for a family plan and had anyone else not living in the same address (such as friends or other relatives)? The only thing I can see is a mention of "same billing address" but my parents wouldn't obviously have that.