Microsoft just released WorldWideTelescope - Mars, the largest digital image mosaic of Mars ever created, using 13,000 HiRISE images. HiRISE is on the Mars Reconnaissance Orbiter and managed by University of Arizona. The images are in 3D, allowing amazing real time tours of Mars.
Microsoft's VP for Research, Tony Hey announced the new product just minutes ago to the group of us at the Microsoft Faculty Summit in Redmond, WA. The project was done in collaboration with NASA and the volumes of data are staggering. Each image is roughly a Gb of data if I heard right.
The images have been color adjusted to match best understanding of natural colors.