Galaxy Tab lets you work, play, read, and connect on the go, but mastering its TouchWiz interface and finding the best apps can be tricky--unless you have this Missing Manual. Gadget whiz Preston Gralla provides crystal-clear explanations and step-by-step instructions to get you up to speed quickly, whether you have the 3G/4G or Wi-Fi version of this amazing device. The important stuff you need to know: Design your experience. Add interactive...