They mention gigapixel cameras, my (brief) googling couldn't find any evidence that such a thing exists, except for an experimental one at Duke https://www.youtube.com/watch?v=ldQXHP7TFUE. Although I suppose a gigapixel photo can be made by taking pictures by multiple cameras at the same time just as well. Still, wouldn't that sort of thing be available commercially, at least for the enthusiasts out there?
There are gigapixel cameras available for enthusiasts today, but they're based on huge (think 20x30 cm) analog film negatives that are subsequently scanned at 3000+ dpi.
