I too got my UX50 sent from the States. After being sent around in telephonic circles a little by Sony here in UK, I've discovered this much: the UX50 would NOT need to be returned to the States for repair under warranty. I was told, however, that I'd need to register using the US URL (and I've found that the UK one doesn't accept the serial no. which is specific, it seems, to the States (and Canada?). However, the US site requires a US address. . . Also, I received no receipt with my Clie
and can't seek repair here under warranty (even if I could register the thing) without one.
The hardware I received has been working perfectly for a month or so - I'm still hoping it won't malfunction. But I should try and chase up a receipt from the US, and clear up the registration problems with UK customer support (because surely I am entitled to the warranty even if the websites are spitting me out). Good luck! XXX
UK customer service: 0870 511 1999.