A social solution in search of a problem

Brightkite.com has recently introduced a new small group SMS text messaging system they call Group Text. Group Text is a many to many chat system developed by Brightkite. It enables you to communicate in real time with up to 25 people via SMS, web, mobile web and dedicated mobile apps for iPhone, Android, Blackberry and Symbian. In other words, you can message a lot of people at once for free in real time and when someone responds to that message, everyone in the group sees it too - kind of like a "reply all" in Email conversations. It's free. Can you think of a use for it?