Did you know your cell phone can name that tune? Access your e-mail — even if it’s not a fancy iPhone or BlackBerry? Cut short a lousy date or boring meeting? Ah, such power. And it’ll even make phone calls. We’ve compiled a list of cool things your cell phone can do. Some only work on specific phones, but most are applications or features you can try with any ol’ model. For instance, Jott.com lets you call in messages to yourself for free; after you’ve dictated a 30-second message, it becomes an e-mail or text message.