Unleash your iPhone and take it to the limit using secret tips and techniques from gadget hacker Erica Sadun. Fast and fun to read, Taking Your iPod touch 4 to the Max is fully updated to show you how get the most out of Apple's OS 4. You'll find all the best undocumented tricks as well as the most efficient and enjoyable introduction to the iPhone available. Starting with an introduction to iPod touch 4 basics, you'll quickly...