dualcorex on iPodTouchFans has posted a guide on how to jailbreak 2.2 for macs.
If you have WINDOWS and need a WINDOWS guide: CLICK ME
NOTE: IF YOU HAVE AN IPHONE 3G AND WANT TO UNLOCK IT IN THE FUTURE, DO NOT UPDATE TO 2.2!
Heres how to do it,
In this guide i will explain how to jailbreak your iphone 3g, iphone edge, or ipod touch 1g on the new 2.2 firmware. Before you begin make sure you are on a stock 2.2 firmware. I do not recommend starting from a jailbroken 2.1 device. Just start fresh.
Download QuickPwn 2.2 for macs,
Open up the Quickpwn application
Click ‘ok’ on the dialog box on the opening of Quickpwn
Connect your device to your computer and then click ‘ok’ on the dialog box
When Quickpwn asks you to change your boot logos I recommend you dont. If something goes wrong and your stuck at the boot logo with a nice little pineapple, Apple will not replace your device. Protect your investment and click no
Quickpwn will now build the IPSW. Just wait about 1 min
Turn off your device
Now you are going to put your device into DFU mode. Just follow the on-screen instructions and you will be fine. This mode enables Quickpwn to flash your device.
An iTunes error popup might appear. Just hit ok
Now Quickpwn will do its magic. You should see this information on your screen
Now a dialog box should appear under Quickpwn. Hit ‘ok’ but do not disconnect your device from your computer. In fact, dont touch it!
Your iPhone or iPod Touch’s screen should show this image with a progress bar. This takes about 1-2 min.
Your iphone should reboot and you will be good to go!