I've followed Jeff for years. He'll make this happen if anyone can...
The real problem for this gaining world-wide acceptance however is that the places that need it most (i.e. Cyprus, Japan, Argentina, and the PIGS) are the exact places that have government who would be the first to ban bitcoins.
It seems that every franchise owner for these things would be risking the local government swooping in and stealing their whole business.

For now I'd be comfy seeing these things in the USA though; New Hampshire and Texas at least would use them like crazy.
I don't know about Argentina or the PIGS, but Cyprus has had literally no regulation on its financial industry. Just a few years ago things like Genius Funds were flying all over the place over there. If they can let that shit fly, why not bitcoin?
As for Japan, they already have MtGox and they haven't tried to pull anything stupid.