Microsoft apologizes for the tweets but doesn't confirm or deny the always online thing. Silence sometimes speaks volumes.
Those Kotaku guys just love to cause a shit-storm, don't they? They'll use anything as fodder, even Microsoft's response which doesn't include mention or confirmation if the next console will be truly online only or not.
I think now after this Microsoft should do an early reveal for their next console and should not wait until E3 to do so after this mess...
Oh, and I'll leave this here: http://www.abload.de/img/wgvhms80rbkp.jpg