Hi Guys and Gals,
1        IAm considering getting 2 iphones for self and wife, we travel overseas regularly and would like to know will the phone work in most countries or will I have to use jailbreak.......what ever that is, would be getting phone thru a vodafone plan.

2        If i buy local sim cards from the country we are in again will we have to do anything special to make sim card work or is it as simple as taking NZ card out and putting in new one from the country we are in?

Many thanks for help