Large-format digital camera, anyone?
Canon develops world's largest CMOS sensor
That tiny little thing next to it is a
full-frame 35mm sensor. The new sensor is 202x205mm (8 inches square), which is almost quadruple the size of standard (4"x5") large-format film, and 19 times the size of the largest commercially available medium format sensor (Phase One's P65+ digital back). They also say that it can take photos in one-hundreth the light required for DSLRs, which, going by the 1DMkIV's maximum 102,400 ISO, would place its sensitivity somewhere in the 10,000,000 ISO region.
Of course, with the comparatively minuscule P65+ going for $40,000, I can't imagine what Canon would have to charge were they ever to actually make a camera with this monstrosity in it...