While it is good to see David Cameron using the internet, I would advise having a paperbag at the ready if you go to Webcameron.
Does he think we were born yesterday? If you were going to do a videcast would you do it while you were doing the washing up? I bet he's got a dishwasher anyway - so I suspect the whole dishwashing thing was a sham. And would you conveniently have someone in your kitchen who is able to hold the camera and provide the right degree of "wobble"?