I find it quite amazing to see the societal impact of mobile phones.
They have changed the way we communicate and live. There is a drastic change in the way children and parents communicate, in our individual relationships with time and location and in so many other parts of our daily lives. There are interesting books and theses about this topic. I recently came across an interesting view point from Russell Buckley about the "Unintended Consequences and the Success of Blackberry in the Middle East", which is further proof of how disruptive mobile can be. As communication and creation/media tools, mobile phones offer new ways to upload and access information (remember the riots in Iran). As such, governments have to monitor and anticipate this impact.
Beyond this, public authorities can make the most of mobile services. Many local councils, regional and national governments, and transport authorities are launching mobile initiatives, creating new value-added services for citizens, and trying to use mobile to connect with the least connected. They need to anticipate the arrival of NFC technology and make the most of more mature mobile ecosystems. They should balance their mobile investments with the constant need to avoid discriminating against particular groups of citizens and to allocate funds to projects with critical mass. Governments in particular can play a key role in stimulating ideas for new services and in backing and funding the most relevant initiatives.