No stick up my arse thanks and the only time I've wasted is having to respond to your annoying and pointless one line post implying that I was in some way striving to be the first to find an unlock for the iphone. Now, if you had taken the time to start with the post you just made, then it would have been a useful contribution to thread.I guess you have a stick up your arse pretty far and can't see what I am saying.
If there is software unlock, you will read about it before you would need to google a website that claims they can do it.
As for using another sim card, I have always been able to put in any sim card into the 3G phone without itune activation. Not sure what sim card or what 3G phone you been using.
I am simply saying this, quit wasting time with these garbage sites, and if there is software unlock, you will read about it on the front page of MacRumors.
So, with that out of the way, let's discuss how you are able to switch SIMs without activation and I am not. What are the plans on the other SIMs? Are they data plans, iPhone, BlackBerry, or voice only plans? Judging by your use of the word 'arse', I'm also betting you're not in the USA?