Along with Sigma 24mm f/1.4 DG HSM Art Lens, Sigma also announced a new Sigma dp0 Quattro compact camera, it features a fixed 14mm F4 lens (21mm equivalent) along with the unconventional styling of its peers. Its Foveon X3 sensor is divided into three layers to record red, green and blue wavelengths separately. Its bottom two layers each contain 4.9MP to record color information, and the top layer captures 19.6MP of resolution/luminance information. Price and availability are yet to be confirmed.
B&H Photo Video has the product page for this camera.