Etiquette

I just realized that I do follow this etiquette -more or less- without being much conscious about it. I also realized that I do get a bit annoyed when others do not follow the same rules in front of or around me. Having said that, who can specify a global etiquette for mobile phone usage? I can reasonably expect that different groups or subcultures may well adopt different behaviors and tolerances towards the mobile phone. Also, as the mobile device evolves it is put into different uses. Etiquettes would have to evolve. The walkman has been a subject of a lot of etiquette regulation, as have other technologies. Generally, I am against blanket regulations. I would prefer that individuals undertook responsibility to adjust their mobile phone behavior according to the social context of use, without much global etiquettes.