Simon and Ross (and other whom I haven’t met) have a public release of Buddycloud. It is a cool little app for your Mobile (Nokia Smart Phone or other Symbian) that keeps track of where you have been and lets you update your status and even hooks into Facebook. It uses special black magic from the Mobile phone network to know when you get back to the same place or suggest new places for you. Also it works as a living phone book that your friends can update and you can know, where they are, where they are heading, what they are doing, and how to get in contact with them.
I need more friends on this to make it more usefull!