Technically speaking the application just provides an UI to the data which is available from the QML NetworkInfo ( http://doc.qt.nokia.com/qtmobility/qml-networkinfo.html) and the mac address is read using the QNetworkInterface class from Qt 4.7 (http://doc.qt.nokia.com/4.7/qnetworkinterface.html).

How I have understood that how the QML NetworkInfo should work is that it sends a signal each time when the corresponding value changes.

I think that I could provide full source code for this application after small refactoring. As you might get also some ideas how to improve it