Amazon, with its limited supply of PS4s, has cleaved its product listing into two, to help people get a handle on when to expect their pre-order to arrive. Those who've already stumped up their cash are likely to find they've been assigned a "Launch Edition," guaranteeing that they'll get the console on the first day of release -- and they'll probably have received the explanatory email copied after the break. If Amazon is able to guarantee delivery for more stock, perhaps the Launch Edition will become available again -- or perhaps those who order the Standard edition (which is identical except for the delivery promise) will be automatically upgraded. Either way, it looks like demand has already outpaced launch-day supply at this retailer.