Mines failing to activate, even though it's an upgrade. Been trying most of the day. I was aware of a server glitch with O2's registration system, but that was resolved. Not a happy bunny so far and have already called the complaints dept.
@haydnwalker: Remove the SIM using the SIM ejection tool, wipe it with a soft dry clean cloth and place it abck in. See what happens. Should resolve the emergency calls issue.