I live in upstate new york and will be heading to montreal this weekend. My droid is setup to so seamlessly pull down data and whatnot, i'm a bit scared to take it into canada and get charged roaming. Would just turning off 3g(data) solve this problem? Should I put it in airplane mode? Also, It'd be nice if I could use Navigation to get there and around the city, but that won't be possible will it?