I bet it’s beautiful in color. There are more photos of Mars here. They are stereoscopic pairs, which I believe means that if you take the left image of the pair and tint it in red in Photoshop, tint the right image in blue, overlay the images, and put on your 3-D tinted cellophane glasses, the photographs will appear to have depth.
Update: Apparently NASA has the technology and ability to read my mind. They’re expected to release color photographs today.