The article even says that you aren't telling the world your plans, your telling a specific group of people. I could see this being useful by starting out gener

The article even says that you aren't telling the world your plans, your telling a specific group of people. I could see this being useful by starting out general and making the plans more specific over time, just like the article says. For example, I could post to a group of close friends that I want to go out on Friday night. Someone else could suggest dancing, and advertisers could suggest a specific club. Because this plan was generated by a group of close friends we can all go. This isn't all that different from how I see my plans made today, but it's online and made with a little more notice.