I've heard a lot of stories lately about mobile payments in Africa and other places that do not have strong established banking system and there's a real and interesting innovation happening there. I just wish that same could happen in the Western world.<p>Btw. Nathan Eagle referred in the article above did really interesting social science work in his PhD thesis by tracking people's daily behavior with mobile phones running Jaiku Mobile's precursor ContextPhone. (Jaiku Mobile was developed by Mika Raento and me)