It was
mentioned earlier today that Apple will be rolling out iOS 5 for anyone with a supported iPhone, iPad, or iPod Touch on
October 12th. The
iOS 5 Gold Master is already available to Apple Developer accounts though and furthermore, developers can also jailbreak it.
The iPhone Dev Team hasn’t yet released an official update to the RedSn0w jailbreak utility to support the latest release yet but MuscleNerd
previously confirmed that you can use the recently updated RedSN0w 0.9.9b2 for Mac or Windows to jailbreak iOS 5 Gold Master. You will need to specificy the IPSW you want to chose and you should point it towards the iOS 5 beta 7 IPSW for now – until the new version of RedSn0w is out.
Remember that this is a tethered jailbreak, which means if you reboot your iPhone, iPod Touch, or iPad – you’ll need to connect to a computer via a USB cable
...