Why the next Xbox won't be called 720

[PlaystaionGamer]

lol at the OP's reason it was called 360, we all know why
if they had called it Xbox 2, when people sore Playstation 3 &Xbox 2 next to each other the PS3 would have looked a better product
it was VERY smart for MS to call it Xbox 360, and its a great name
i hope they dont call the next one Xbox 720 or something, im sure they will come up with something cool
i also hope the next Playstation isnt called PS4, come on MS and Sony give us some cool names! lol