I think that the information you give are really useful. I often run out of my internet package and being able to use free wi-fi will be veryu beneficial for me. However this proves us that WiFi is not the safest way to connect to Internet. Anyone with a little knowledge can find your mac adress and use it to gain access to your Wifi. It’s cool to know how to gain access to someone’s wifi; however I don’t think that I will try it unless in urgency. I believe that it’s against people’s privacy.