I got the Nokia N-70 just before Christmas. All the local "un-locking" shops said that as yet, there was no method to unlock the phone. You can imagine my surprise that when we arrived in Turkey on December 30th it worked perfectly ok with my Aria sim card. Apparently, if your Nokia is with O2 it is already unlocked. I don't know if it's true for them all but it certainly worked for me.
When we go over full time in 3 weeks I will be stopping my standing order to O2 so I'm just wondering if they will try and block the phone?