Tech CultureDecember 1, 20103:50 PM PSTbyCNET Reviews staff@CNETfacebooktwitterlinkedingoogleplusemailcommentsmoreredditpinteresttumblr This content is rated TV-MA, and is for viewers 18 years or older. Are you of age? Yes No Sorry, you are not old enough to view this content. Play Think you're an iPhone know-it-all? Check out these handy tips that might still be new to you.