Turn your cell into a gieger counter

Actually its a homebrewed counter that plugs into the gents cell and it looks like an app he wrote is translating the info.    Might be worth keeping an eye on this (its the authors 3rd version.

http://hackaday.com/2013/06/23/turning-a-phone-into-a-geiger-counter/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29