From Bungie.net : "We also made mention of the Halo 3 Beta (coming some time in 2007) and folks panicked when they saw that a press release mentioned only the US. Don't panic. The Halo 3 Beta will be available in the US, Europe and elsewhere in the world. We'll keep you updated on the detailed specifics as they come in."
I dont think they get it the same day as the US. I think like a week later.
Phewww...
Ever heard of the single market??
MS showing europe the love. thats the way it should be, although i am in the US it would suck had they cut europe out of this awsome opportunity (halo 3 beta).