We already thought of this problem - we said "hey, there'll be different companies with the same name; we should introduce different namespaces so that, say, a

We already thought of this problem - we said "hey, there'll be different companies with the same name; we should introduce different namespaces so that, say, a company in Australia and a company in Austria don't clash. Turns out, end-users want a flat namespace, so everybody has to buy names in that namespace. Until ICANN opens up the top-level domain space to arbitrary registrations (instead of the current 'you have to spend $150,000 and run a registrar' deal), that flat namespace is probably going to be .com.