The iPhone Dev-Team warns that installing the iPhone 2.2 firmware might prevent a software unlock when it is available. They were also thought a good news about unlocking iPhone 3G progress.
And they said:
"We’ve made some decent progress with the iPhone 3G, nothing worthy of a party as yet but we are moving along nicely, we’ll keep you updated on this.
Now for something a bit more serious, we’ve explained about Apple’s updates in the past and we’ve warned against the immediate installation of these updates without knowing what they do to your device.
This is indeed true of the iPhone 3G’s upcoming 2.2 release. Installing ‘2.2’ on the iPhone 3G could affect your chances of any software unlock in the near future (should one be found and released), so when you see an update in iTunes await our instructions first!
Please don’t blindly install the update and then complain about it later ;-)
I'll post the safe upgrade path when it becomes available. Read more details on their blog.
Hi ! When you will unclock iphone 3g (2.1 firmware) , that i can use other carriers.?Regards XM
Hi Marcin...
yes..you iPhone would no longer bind in one carrier..thats mean, it can use with other carriers...unfortunately there is no software/solution for iPhone 3G unlock so far..