Long ago, I downloaded a few Apple product reference apps, and this one is the only one I kept using. Whenever I need more info on an Apple product, this app answers my questions. Very complete information, and the developer works hard to keep it up to date. There are Apple products in here I never knew existed, and the presentation of the info is perfect for the iPhone.
In a recent release, the "Play Startup Chime" button disappeared. I figured it had been removed from the app and didnt want to complain because I figured it was a legal thing. Also, the app is so phenomenal, I didnt feel right complaining about a feature that was just for fun. While tapping around in the app, I noticed that tapping on the product image now plays the startup sound! ☺