If you have a spare $45,038 or so, Hasselblad is shipping their 200-megapixel camera: the H4D-200MS. This medium format camera is based on a 50-megapixel sensor but composites six shots to create the resolution. The process uses a piezoelectric motor to create the image and takes 30 seconds, so this one is not for portraits.
The camera continues to shoot at sensitivities between ISO 50 and 800 and also keeps the True Focus feature, which uses motion sensors to auto-adjust the focus after the camera is rotated for an off-center shot. Photos can save to a Compact Flash card, though Hasselblad recommends using its hard drive tethering feature because of the 600MB uncompressed photos at the full 200 megapixels.