In response to the phone post yesterday, several readers mentioned the TMobile Military One Plan as another option. Here is the info on that plan. It appears that, for one or two age-qualifying people, the cost of the Senior Plan is a bit less expensive($10). However, the larger (or younger!) the family, the more the Military One Plan makes sense. It also has the advantage of being available to ALL military and veterans, regardless of age.
Also, here is the list of the (currently) 140 countries covered for free data and texting, and 20 cent per minute calls.