I am going to Europe next week (Netherlands). I have U.S. T-mobile account. (voice and data) and currently have a T-mobile "Dash" smart phone. I know that the sole provider for the iphone in Holland is T-Mobile (like AT&T is here in the US). Can I buy an iphone in holland that works here in the USA with my t-mobile account? Has anybody tried this yet? If so, did you go to the Apple store in Europe to buy it or to the T-Mobile store? Thanks in advance for your answers.