DOF Calculator for Android

I finally spent a few minutes playing with the Depth of Field Calculator application for my Android phone this morning. For some reason I couldn't find a full-frame camera in the options the first time I played with it, but when I tried today my 5D popped up right away. It looks like an application that I'll be using the next time I take some pictures. If nothing else it will make me think/realize more just how wide or narrow that depth is as I'm shooting. (I know, I'm sure you iPhone users had this app a long time ago.)