I don´t think that Kinect was a copy of the Eyetoy, because they work in a different way.
Kinect capts movements based on the heat of the body, while the Eyetoy capts movements based on the images, not on the body itself. It´s a different technology
Still, much longer than both there was the Power Glove by Mattel and the Genesis/Mega Drive motion Sensor... so in that way all companies are using recicled 80´s ideas.
As for the conference, actually there wasn´t anything we weren´t expecting or we didn´t already know, apart from some of the games announced. The line-up of games seems really good, but we´re still don´t know what the device looks like and how much it will cost, and that gave me the impression that it was a rushed conference.
But let´s not jump on conclusions... it´s clear that Sony still has a lot to do and I hope we can have a better glimpse of the PS4 on E3
