Found a new location based social network site called Brightkite it's not taking off yet but it looks like it could get big. It seems like these text, web twitter update sites are getting popular all of them having a different twist.
Brightkite is location based so you Check In and it pops up saying where in the world you are.
See my profile brightkite.com/people/DavidF and get posting. The beauty of this is it work with the iPhone allowing the user to email pictures up.