I'm still waiting for a bit more control over hard / soft edges - especially nice for not so high-poly modelling...
No need to wait. Just mark the polys, press Ctrl-X and Ctrl-V (cut and paste) and they are in the same position again but edges are cut. This way you get hard edges. This works fast and is very easy.
Though you could use some more complicated edge-tools as well, you can even create very small polygons next to each other, but it would take too much time and too much polygons.
