I've been playing around with Dish Pointer AR Pro on my iPad 2 today. The app is written for the iPhone so it doesn't take advantage of the full resolution of the iPad but it works well. I wish I'd have had something like this to help me set-up my E* Dishes years ago when I first got them. The attached photo shows why I don't have E* anymore. If you make your living installing satellite systems this app could be a big help to you.
Mario
Mario