I thought this might interest a fair number of people here. My apologies if its the wrong forum. I can't post a link or images, but if you search iTunes for 'DishLoc', you'll find it. Here's a blurb:

DishLoc makes it easy to find the best location to set up your satellite dish by displaying your favourite satellites overlaying the camera view! This augmented reality view makes it easy to see if there any obstructions in the way, like telephone poles, trees, or even mountains. If you don't have a built-in compass, or if your built-in compass isn't accurate enough for you, you can place a reference pin on a visible landmark in google maps view, and align it in your augmented view for even more accurate results!