When my husband and I first got our iPhones, I read him all these tips while on a road trip. Some of these were obvious and most of these could be found elsewhere, but who has the time to go searching? It was helpful and I still refer back to it. When I needed help trying to figure out a function, I contacted the designers and they emailed me back with suggestions. I am amazed at how few functions people use on their iPhone. It is a great tool and can do so much! This app will start you on your way to getting more from your iPhone.
Nerd Chick about Secrets for iPhone - Tips & Tricks, v4.7