Of course, it kind of takes away from the idea that a mobile phone should be sleek and easy to carry, but I'm guessing that is beside the point. The iFlash is a self-powered flash module that plugs directly into the docking port of your iPhone 3G/3GS or iPod touch and allows owners to take pictures in badly lit areas. It will also work with your iPhone 4 but there's not a lot of point in having two flashes, especially since the extra one hangs off your otherwise thin and lightweight iPhone. As an added bonus, the iFlash fits under most cases and can also be used as an LED flashlight. We have seen an add-on flash for the iPhon