Bought spare n770 from expansys and it came with US travel charger. It does not matter much for me since I would need UK to EU adapter anyway but I was a bit surprised. Did your came with UK charger (AC-4E) or the US one (AC-4U)?

Also this may mean that UK Nokia may not honor warranty since it is US imported (?). Someone here or in Woot forum mentioned that (s)he had problem with Nokia fixing/replacing N770 with WSOD in US since they claimed that device (bought on Woot) was not for US market.