To me, it feels like what I thought an Origami would be. Natural.
What can I say about it? Well, Sony is synonym of innovation and the exterior design of Sony's devices can be described using just one word: unique. I'm more like a stylus kind of user so for me the keyboard is not something that attracts me and the 5 inches display is not good enough for working in Visual Studio at a high resolution at least for me and my eyes. And the most important point: price. To pay around 2000 dollars for a companion PC that's crazy even for a Sony unless you will get that money back using it. But I agree with Rob, we need Origamis with keyboards in the future for those who like the feeling of typing with two fingers as much as we need current style Origamis.