Unexpected delays due to possible production issues or troulbe finalizing that used game system they're trying to force on everyone.
Have they even started mass producing these yet?

Who knows, wasn't some of M$ conference a set up? like the voice recognition wasn't live maybe they need more time. Guess we will find out at e3

how bout Sony?
Sony = no hardware at "Reveal". OMG, they're not coming out this year

I'd be very surprised if it doesn't. If early indications mean anything then MS is going to be up against it to recapture the same market that made the 360 so successful. They can't afford to give Sony a head-start, so they won't.

wait i forgot, did they announce datE? i thought they said holiday 2013????

It was a piece of paper with specs written on it + a controller.
And it wouldn't be the first time that Sony fails to launch a console globally at the same time. Actually they were never capable to do that.

But that is something only the internet communities come up with. MS did it before, Sony tried, but failed, MS confirms to do it again and some guys interpret interviews about a totally different context in a way to doubt MS now. Crazy.

They seem sure it is coming to the UK

Insted Sony showed games running in the hardware... Killzone was running in a PS4 in real-time lol.

I don't think MS nor Sony would want to give the other a particularly good head start. So both console will be released this year, unless something catastrophic happens that can delay production and shipments to a halt.

i remember when they showed killzone3 at 2005 E3 in "Real-time"