Check out this sink series from Blanco Germany. Actually, these sinks are available all over Europe and the UK and if the stars align, we'll see them in the rest of the world eventually. These ideas are too good for them not to spread.
First up is the Blancoalaros sink.
The sink itself is made from Silgranit and it has two drain boards to either side of the bowl. Cutting
boards fit into grooves in the sink rim and can slide along the length of the sink.
In the image below, the Blancoalaros sink's been paired with the Blancotelescope retractable faucet. When the faucet's in its down position, the entire space taken up by the sink can be covered with a cutting board. In my tiny kitchen, something like that would be almost three feet of found counter space.
In the sink above, the cutting boards are in Silgranit that matches the sink itself. The metal platform and stunning metal strainer are available as accessories.
Also sold as accessories for the Blancoalaros sinks are the Crystalline series of black and white cutting boards.
In an open, modern space a black sink cover/ cutting board would be the thing that really made the room perfect.
It's this kind of thinking that's made Blanco an industry leader on both sides of the Atlantic and as they increase their presence in the US, look for more innovations such as the ones I'm discussing here. I've seen other integrated cutting boards before, but I've never seen them so intelligently designed. Good job Blanco. See the Blanco products available in Europe here and Blanco's North American offerings here.