Phone arrived this morning, is unlocked, has all my contacts moved over to it (it comes with a CD full of software and a USB cable for PC users; on a Mac the standard iSync stuff Just Works), and has a really nice camera. Everyone trying to phone me can now resume normal operations ;-).
An aside: when I said the iSync stuff Just Works, I mean that the contacts got copied over. That doesn't mean they were in any semblance of normality, though. For some stupid reason, my old Samsung phone sorts and displays phone book entries in last name, first name order, which is insane if you live in a country where people spell their names first name, last name. So the contacts in the Samsung ended up having people's names all in the last name part (because it wouldn't let me enter spaces in the first name) - which the Sony Ericsson phone decided meant that people should be called ". name". Sigh. If I didn't have an easy way of synching contacts between phone and computer, which therefore let me cut and paste easily rather than typing everything in again on a mobile phone keypad, I would be much more annoyed than I am ;-).