Hi, I'm wondering if anyone has had luck ordering an iPhone 3GS then doing an early cancellation of the device. I would like to upgrade my 2G, but I'm leaving the US in three months, and won't keep my AT&T contract. Do I really just have to pay the $175 ETF fee (plus three months of service)? So this is way cheaper than paying $600 for an unsubidized phone? Thanks!