iPhone 3.0 Beta 3 users can now jailbreak your iPhone again with QuickPWN, but will probably make your phone unable to be unlocked by the iPhone Dev Team’s unlock util. Be careful. [QuickPWN via Into Mobile]
The Dev Team just released the Pwnage app, which jailbreaks 2.2.1 iPhones on Macs. If you’re ever going to SIM unlock your phone in the future (use it on another network), use this, not QuickPwn.
A warning for all you iPhone jailbreak enthusiasts: Apple’s newest OS software update contains quite a stink bomb–10.5.6 disables the Pwnage tool, making you unable to jailbreak or unlock your iPhone or iPod Touch.