I just amazed with new keyboard design recently. Unlike usual keyboard which made from polycarbonat or solid keyboard which made of metal, I found rubber keyboard from SolidAlliance quiet interesting.
Since it was made of rubber, obviously it’s less slippery than usual keyboard and improving your writing comfort. The Dream Link rollable keyboard has full size key to ensure typing accuracy. However in my opinion you need a solid base to work with this keyboard. Using a flexible keyboard on your lap or on the bed is less favorable because the key become less responsive.
The advantage of this rubber keyboard is about a higher mobility. Apparently it will fit into your hand bag when on the road. But you still need a desk to use it.