Microscope
Image by BWJones via Flickr

The camera on the iPhone 4 is pretty good, but this mod really puts it over the top. Over at the Crabfu Artworks blog, the author discovered that if you take a 13 dollar microscope and glue it to a cheap iPhone case, you can turn your iPhone into a surprisingly effective digital microscope.  Pretty impressive results for a total of less than 30 bucks.  Anybody going to try this out?