UserX
A little picture of your country's flag which when you point to it also says the name of the country which can be specified in your porifle, but totally optional of course.
i think this would be a good idea because of the large number of americans on board, everyone else (well the americans) assumes everyone else is american and i get tired or saying 'im from the uk' all the time.
country of origin is not important for sharing of information, but it is for when you need to know where to buy something or get some service from.
"Yeh you can get it down at Trader Joes for $3" [insert despair smiley here]