I've heard in the UK they wish to make it illegal to access other's open wireless and even illegal to have an open wireless access point. In the US I don't think we have a specific law on the act of using an open wireless connection. I leave my home wireless open when I'm on the computer -- which is most of the time. I've on occasion used an open connection to check my email. I use a $7.95 per month Boingo mobile account which provides access to a large number of WiFi locations with my N810. On a personal level, I set ethical rules for myself. I consider that every act I take may have a negative consequence on another.