Looks like this product is actually going to make production and hit retail. As MSI's GeForce GTX 580 HydroGen is available for pre-order in Europe for around 563 EUR.
The graphics card will come with a factory overclock at 823MHz on the core domain, 1645MHz on the shader processors and 1536MB GDDR5 clocked at 4276MHz (stock 772/1544/4008MHz). Check out the thumbnail:
