For a 4 week holiday in Europe (several countries), how can we best avoid bill shock?
Specifically, we have four people using 2degrees pre-pay Android mobiles, with a need for a small volume of calls and some data (mostly for Google Maps, to find our way around).
The 2degrees website lists roaming charges of $4.39/minute for calls and $10/MB for data for many countries, though some are cheaper. What options do we have for more modest rates when travelling around Europe?