iPhone 4 Unlock Is Live
August 4, 2010
Right on schedule (this morning), the iPhone Dev Team released, a brand new version of Ultrasn0w, its iPhone unlocking tool. On top of supporting the iPhone 4, it's now also able to fully unlock iPhone 3GS' and 3G's on the latest baseband. If you want it, it's available right now from Cydia on the Ultrasn0w repository : repo666.ultrasn0w.com
As usual, make sure to avoid updating your iPhone after that as it will most likely re-lock your iPhone.