It'll need to be approved in individual countries so it'll probably get turned on in a lot more areas.
In the US there's an explicit exception to life threatening emergencies that let you use basically any radio frequency I wonder how many countries have something like that that could at least allow them to enable the emergency contact portion of this without the check-in for non emergency situations.
This is new to me. I thought the feature was limited to US + Canada. Did they mention additional regions in the keynote?