Looks like they ended the Amazon PS4 versus Xbone earlier for some reason. Pretty bad massacre either way.
PS4's look to be sold out at the big four retailers in Canada (although Thesource looks to still have it.) Everybody still has Xbone "Day One" edition pre-orders available - the allocation for actual the initial release day.
The Amazon.com "Videogame best seller list" is pretty interesting. With the initial launch PS4 sold out, the subsequent PS4 stock is leading. Xbone "Day One" edition is second, and more than half of the top 8 sellers are PS4 systems or PS4 bundles. Amazon.com doesn't not appear to selling any Xbone bundles.
PS4 systems selling out is interesting given the higher allocation (of what appears to be at least 2 to 1) over Xbone at most retailers. Kinda crazy nobody has sold out of "Day One" Xbones yet though.