FIRST CASE STUDY: Is in progress. I volunteered to be the human subject for this first case study. The goal is to improve my (and maybe your) travel WiFi communications.
Study undertaken because recently I had the unpleasant experience of being locked out of my own email & social media account *while traveling in Northern Europe*. I have been exploring better solutions for next time.
As posted (on LinkedIn), I looked into having a low cost 2nd (unlocked; just for travel) smartphone that would work outside of North America where I live.
Some conclusions: soon, we hope.