Currently Being ModeratedMay 4, 2012 11:00 PM (in response to lobul)
An iPhone's warranty is only valid in the country where it was originally sold. You have to return it to that country for warranty service.
Apple may restrict warranty service to the country where Apple or its Authorized Distributors originally sold the Apple Product." - http://www.apple.com/legal/warranty/products/iphone-english.html