Has anyone looked into which carrier (European or US) gives the best choice for ipad mini (with retina display) nano sim cards rates, data plans, etc. (without roaming)? Looking into using an ipad mini for travel across different countries with a pay-as-you-go plan for finding locations, looking up sites, booking tickets online, maps, etc. I can use wifi at the hotels and public wifi sites but if I'm out, I would like the covenience of being able to use the ipad without wifi.
THX