This iPad 2 is my first Apple device. I've managed to find the answers to most of my questions, but there are still some things I need help with. - When typing, how do I enter a tab character? Is there a way to Undo without going to the second keyboard? - I know how to Select a word, or Select All, but is there a fast way to select a line or a sentence? ("faster" than dragging the handles) - If I want to close the current app (not just switch to something else) I have to press the Home key, then press it twice more to bring up the Recent apps, then hold an icon to make them jiggle, then close the one I want. Is there a faster way? - Similarly, is there a way to close the current window in Safari without displaying all the open windows first? - You know how most Windows apps have a Help feature on their menus? Is there anything like that on the iPad? - All of the other computers on my home network are Windows. I can't see the iPad on the network, and I don't know how to see the network on the iPad. Can it be done? How can I trade files, or play videos across machines? - this iPad does not have a 3G connection, so i'm frequently off-line. Is there a version of the iPad Guide that I can download and read later? I've got more, but i've overstayed my welcome already. Thanks for your help!