Okay, we all know here that the iPhone (and iPod Touch) make great mobile gaming devices... But what are some practical uses you have discovered (or invented) for your iPhone, besides telephony and e-mail? What applications do you use to accomplish these tasks? I use iOwn, an inventory application, to keep track of my personal library (books, CDs and DVDs). This way, I have records for insurance purposes and don't buy duplicates while shopping. ($4.99) USA Today keeps me informed of national current events while I'm waiting in a line or lobby. (Free) Package Tracker is a recent addition to my collection that has helped me monitor expected deliveries to my door. ($0.99) Link: [Lite] Any other ideas or recommendations? No games!