The 4.3.3 untether works on all Apple devices that support 4.3.2 except for the iPad2:
iPhone 3GS
(GSM)
iPod Touch 3G
iPod Touch 4G
iPad 1
AppleTV 2G (PwnageTool only for now)
Redsnow is easy to use, it is available for Windows and Mac OS. As usual for unlockers – do not update to 4.3.3, use PwnageTool (MAC) and Sn0wBreeze (Windows) to preserve the baseband.
You can download RedSn0w 0.9.6 rc15 .
You can download PwnageTool 4.3.3 .
Ultrasn0w was also updated to support old baseband on new iOS 4.3.3. Ultrasn0w 1.2.3 (for unlockers with old baseband) is available in Cydia.
Redsnow is easy to use, it is available for Windows and Mac OS. Pwnagetool can be used to create custom ipsw and preserve baseband, it supports Mac OS only.
Ultrasn0w doesn’t work on iOS 4.3.1 yet (even with iOS 4.3.1 + old baseband). The fix will be available soon. Here’s a warning from DevTeam for unlockers:
