Ok, I've read through all the pages, and I'm still a little confused about something:
If I use the http://iphone.unlock.no/ method, on WinXP, does the new SIM need to be activated after the unlock, or is it pop in and go?
I have a legit AT&T iphone account in the US, but I'm interested in traveling abroad. Can I unlock stateside, then go to Europe and buy a prepaid SIM and pop it in without activating? I'd like to not have to bring my laptop with me on this trip. Also, does the legit AT&T SIM still work after unlock as well?
I had the same question, I am traveling in a few weeks and found the answer by testing it . You can not simply put the SIM in a use it. I must be activated. I just tried it with my ATT and a borrowed tmobile SIM.
I used the http://iphone.unlock.no/ method on Vista. I'm swapping SIMs without activiting. Just pop it in and it works.
I also already have an At&t account, but wanted the option to use other carrier's SIMs on my phone. The alternate SIM I'm using is Tmobile.
Folks,
What the easiest method available at the moment? I´m running 1.0.2 firmware and can either use XP or OS X.
There´s iphone.unlock.no but I read there´s an iUnlock GUI.

Wooooohoooo! Confirmed on Rogers Wireless in Vancouver, Canada. 🙂
SMS text and phone fully functional.
Methods: http://iphone.unlock.no/ and http://modmyiphone.com/wiki/index.ph...iPhone_iUnlock
These two tutorials seem to be the easiest to follow, but they have different approaches with minicom. http://iphone.unlock.no/ is more elegant, but the modmyiphone site has better laid out instructions.
Tips: Make sure to read the instructions very carefully with the SIM removed until the very end. Also, DO NOT sync without a SIM card inserted after the hack is completed. iTunes will prompt you to sign up with AT&T again and you will have to start over.
Big thanks to all the hard working developers!
his program worked for me its just when they say send the unlock app you need to do it through ssh thats allIs there ANYONE that can confirm they used the HaRRo GUI verison and it worked successfuly (http://www.freeiphoneunlock.com/unlock). The following site says it was a scam and does not work at all:
"Alright guys, it turns out that the iUnlock GUI developer that we thought was part of the iPhone Dev Team is nothing more than a scam artist. He managed to trick us into believing that he would be releasing a graphical application to automate the application of the iPhone Dev Teams iUnlock software, and that he was actually part of the iPhone Dev Team.
haRRo almost solicited a $42,000 donation from iphoneworldwideunlock.com and has reportedly aligned himself with Aussie iPhone Unlock to distribute the iUnlock GUI application that he allegedly created"
Link: http://www.intomobile.com/2007/09/1...ly-arrived-iunlock-battles-iphonesimfree.html
his program worked for me its just when they say send the unlock app you need to do it through ssh thats all
She has to add a data plan for visual voicemail, email and safari. Have her add the $20 unlimted data plan to her acccount.Real stupid question here guys..My gf, who already has cingular wants an iphone now. She wants to stay on her current plan, and she is not interested in data. After unlocking, would she be alright using her current plan?