Pros: very clean, very low maintenance. Fairly easy to carry 1-2 spare belts on tour.

Cons: Belts are less efficient than chains; Rohloff is less efficient than derailleurs. You won't get spares on tour, ordering through QBP could take a very long time. Expensive.

I think it depends on where and how long you're touring. 2 weeks, no problem. Maybe even a few months. However, I can guarantee that no matter how "unbreakable" the chains are, not only will it break, but it will break at just about the worst possible time.

I recommend you do some research on Strida folding bikes, which use belt drives and internal hubs. Check the Folding forum for feedback forthwith....