famous Dev team successfully unlocked firmware 2.0 even before Apple releasing it.In other words Dev team unlocked iPhone 2.0 before apple releasing it.
For unlocking iPhone 2.0 you have to have iPhone 1.1.4 and Pwnage tool.It means those who have iPhone 3G should wait for 3G jailbreak which is currently under heavy development.
upcoming PwnageTool 2.0 is for Mac only now and hopefully cmw convert it for windows users
here is a demo of upcoming PwnageTool 2.0:
Stay tuned for 3G jailbreak
update 1:iPhone 2.0 supports Persian/Farsi language partially, So it’s better than nothing.