have plans availabe specifically for koodo members that travel and want to keep in touch with family for deep discounted rates for koodo to koodo as rogers and AT&T do this and its a great idea my whole family is koodo and we all trave;
I've posted this elsewhere before but if you are planning on travelling to the U.S. and have an unlocked phone, check out Roam Mobility. Unbeatable prices (including data) for U.S. roaming. All you need to do is purchase a SIM which is sold at a variety of places.
PS: I don't work for Roam Mobility but have been more than satisfied with their service this past year.