Yep, while XBOx is sold out, PS4 has been steadily in stock on Amazon for the last 13 hours....
http://www.amazon.com/gp/product/B00BGA9WK2/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Can it really be that PS4 demand was low, but supply was incredibly limited???