I had a similar case for my old blackberry and I think it would be great to have one for my shiny new 9700. It is a very light soft case that covers the keyboard. My old one has saved me from getting so many things/liquids and what not in there. So please help - vote for it on their feedback site:
Here is the link to the official page of the cover for the 9000, that includes different colors, has a you tube video review of the cover and the price - $19.99