Reminds me on those old graphic cards tech demos But there you could play around with bloom and tone mapping parameters .
It is basicly just some environment mapping I guess? Where and how does the tone mapping happen?

Those lighshafts are nice, but they seem to be based on a too low resolution, which results in them being a bit jerky.
But this and the above are basicly already possible?

I love physics an wonder how easy those cloth physics will be to use. I also wonder about the lightmapper and the new shader system. Those screenshots and demos and videos are all nice, but they don´t show much. The most important is not that something is possible, because everything already is possible, but the question is how. How fast and how easy.