I thought it would have been backwards compatible in some way, with the standard 3g networks. Although I had not looked into the full specification.
I was going to wait a few weeks for it. As I know you have next to no chance to get one atm, due to only a few being out, when they accidental sent a batch out early.
But if it's not going to work over here, I will scrap that idea.
GSM It should work. However, the 3G banding in the US is different to Euro banding.