I am one of the fairly large and vocal minority of people who are skeptical about the usefulness of Twitter. I don't see how it's better at communication with people I know than the phone, email, Skype (Skype IM is a very useful tool for people you are frequently on the phone with), IM, IRC channels, snailmail letters, what have you. And I am not that interested in what people I don't know are eating for dinner. Heck I'm not that interested in what people I do know are having for dinner, unless they can write it up and photograph it beautifully and give me the recipes (yay for food blogs).