Yup, that's the only difference, but for those prices I would buy a set that said "London", wouldn't bother me the least bit. Besides, the poster is using them for touring, people will think he came all the way from England!!

One thing I forgot to mention to the Mdsanic13, make sure you have a spare tire when you go, and a couple of spare tubes, along with a couple of patch kits and boot patches...I know some of that is obvious but you would be surprise at how many people don't think about a spare tire or more then one tube. People that go on long touring events into sort of remote areas will usually carry two tires and 4 tubes; but if you're going on a tour where cities and towns are always nearby then just one tire and two tubes should suffice if you you're well acquainted with using tube and tire boot patches.

The question for a lot of tours on carrying spare tires is how to fold a wire beaded tire so it will store in a pannier; well here's how: http://www.youtube.com/watch?v=INIG3NRTbEE AND: http://home.comcast.net/~mandmlj/tirefolding/index.html
Vittoria Randonneur Pro tire is a touring tire that does fold flat instead of the way a wire beaded tire folds, but it is a lighter weight tire with excellent but not great flat protection, and will wear out fast if used for long distance touring. But could be a good way to have a emergency use only spare that takes up minimal space and weight.