Remember that video I posted back in September of the folks light painting with an iPad using long exposures? Well, if you thought that was cool, you can now download an iPhone app called Holographium that allows you to do the exact same thing. The app is free for now but after November 15th, it’s going to be $10, so you should just go ahead and download it now. [via]

Here are three of my very crappy examples. This is really fun to do!