According to gbuergisser, Nokia Europe have told him: "the N810 will not be available for a few weeks (December for sure) in Europe."
This fits with the NokiaUSA.com date of 2007-12-19. As zerojay's said, we're getting stuff cheap so shouldn't complain (too much), but it is frustrating. Users are getting N810s from retailers in the US, but no-one on the device programme have been able to get one yet. This is frustrating to end-users as they've got no software, and it's frustrating to the lucky 500 watching people get them before them and then moaning there's no software.
Fortunately Quim Gil's recognised this, but we're still pretty much in the dark on actual dates and why it's been delayed in some markets from the original mid-November date.