I lived for a time in Canada and learned first hand that the government protected it's own. Also because of work I did for a few companies on wireless systems (paging and more) I learned how Japan went to extremes to change cellular systems so any generic phone such as GSM would not work in their country.
-> So here's the rub about the Japan angle. If you did incorporate the radio or software to make your phone work in Canada, USA and Japan, the regulatory agencies or ministry would put you through testing and license gauntlets you would not believe. That would raise the cost of the handset and no one would buy it.
I wasn't clear about what I saw and experienced. The governments blocked such advances. It's that simple.
If each different country has different communication media laws why not just adapt or make workarounds on them?
i mean isn't this a potentially prolific market? Just curious:)