ipad app: Autodesk Force Effect

This app may not help you in the traditional sense of practicing architecture, but I would be remiss if I said it was completely useless.  There are a lot of things that you have no idea what they are for or how they could possibly help you, that is until you run across that one situation where it is the perfect app for the job.  (I've inserted the tool analogy here before, but I'll spare you from it this time)