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"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."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2013/06/13/amazon-launch-edition-playstation-4/>