Wow, I am surprised to see so many recommandation for global app. We will definitely work on this soon.
+1
wanted to add some for Germany (would require additional currency)
Let me try to add it tonight's dev session =)
The first thing I did was zoom way out and drag it all the way to Australia. You can get a user's approximate location by looking up their IP against a geolocation service and center their map on there in case they deny permission.
I think there might also be ways to look up purchasing power, for what the equivalent of "under $10" (i.e. a cheap meal) is relative to the local currency.
Or at least make it clear from the get-go that it's US-only.