3.0 Beta 4 has been jailbroken! This is the "official" unofficial jailbreak from Russia. Their patched QuickPwn will jailbreak your iPhone, iPhone 3G, or 1st generation iPod Touch running 3.0 Beta 4 firmware that released a few days ago.
As with the previous 3.0 beta jailbreaks, Icy is installed instead of Cydia. Icy takes some getting used to and isn't nearly as functional as Cydia but we are left without options until Cydia is updated for 3.0.
Once again this is not a official dev team release. It is independently compiled firmware bundles packaged into the dev teams QuickPwn software.
This is for windows only! A mac version will only be released by the dev team and they are not releasing their jailbreak until the offical release of 3.0.