I got a text from a friend of mine, iPhone to iPhone, and darn if she didn't have all sorts of cute little icons in her message to me. When I asked how she did it, she said "emoji!" I have no idea what that is or what it means, but I really want to be able to respond in kind ASAP. Help?!...

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I've been hearing a lot about how the American Red Cross has raised millions of dollars in relief funds for the Haitians through people "texting 'HAITI' to 90999" but I have an iPhone and I know how to send text messages to my friends by finding them in my Contacts app, but how do I send a text message like that to a non-phone number numeric code [they're called "shortcodes" in the industry, btw --Ed]?...

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I've signed up for Twitter and am having lots of fun with it, but every time I add someone new, all of their Tweets end up going to my cellphone as SMS text messages. This is bad, and it's driving me crazy. Is there some easy way to fix this?...

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