The much awaited Pwnage Tool 2.0 has just been released a few hours ago! Pwnage Tool 2.0 is the name of the software which allows for the unlocking of iPhone of versions 2.0 firmware. So you can use this software to unlock the 2.0 firmware for iPhone 3G, iPhone, and iPod Touch!
You can view the official blog entry posted by iPhone Dev Blog by clicking here. As you can see, their server crashed over the heavy load of downloads, so mirror links are being sought after. I have provided various mirror links from rapidshare to megaupload to torrents.
Note: This release is only for Mac users but windows users can also install and use this tool. For the tutorial click here.
Also Note: If at anytime, you get an error 1600. Following is the extract from iPhone Dev Blog:
If you get Error 1600 from iTunes (or if you see in your log a failure to prepare x12220000_4_Recovery.ipsw), try: mkdir “~/Library/iTunes/Device Support” ; if that directory already exists, remove any files in it. Then re-run PwnageTool.