Yes, the page which I saw describes exactly the same shape as you stefanmohl describe. The shape tries to make the moulded or pressed keys "click" somehow; there are the same kind of almost 90-degree edges, like those of real keys. But as I've not had the opportunity to use it, I have some doubts about its tactical "touch and feel". Now that page is hard to find. Maybe they come across patent disputes or the product is not yet mature enough.