Thanks for the info folks. My next three questions become:
1) I'm assuming we are not talking amassing 1 mil miles in one year, although from what I have read here, that's not out of the realm of possibility for some people on this site. So, it is the basis of total miles accumulated over some time period, correct?
2) That being said, do I have to allow the miles to sit there until I hit 1,000,000 and then I get the lifetime status?
3) If I have to let the miles sit there, and I eventually get to the 1 mil mark, do I then have to "maintain the balance" to keep the benefit? Example, I hit 1,000,000 and get the card. Can I take that free around the world flight now(assuming the availability of seats) and not lose my status?
Again, thanks.