Dr. Werner Vogels of Amazon just announced in his keynote at the Web 2.0 Expo today, that buckets at S3 can now, starting today, be stored in Europe by default. S3 and EC2 are in my opinion the proof of concept of a new form of solution providers saving your company building knowlegdge in areas that are not your core competency much more than previously available by tech outsourcing.
I have not yet found an official press release or european prices yet.
Update: Dr. Werner Vogels has confirmation up on his page. The prices for Europe can be found directly at the S3 page.