DevTeam hacker MuscleNerd has recently confirmed that the RedSn0w 0.9.8 b1 jailbreak works on iOS 5 Beta 2. All you have to do is to point it to a downloaded iOS 5 beta 1 firmware ipsw.
5.0b2 can be jailbroken w/redsn0w from 2 wks ago http://is.gd/6eek4Y (must point redsn0w at 5.0b1 IPSW)..devs ONLY please
This jailbreak works on all devices, exect iPad 2. This means you can get a tethered jailbreak on Windows and Mac OS for iPhone 3GS, , iPod Touch 3G, iPod Touch 4G and iPad.
You can download RedSn0w 0.9.8 b1 for Windows and Mac OS .
MuscleNerd recently Tweeted that iOS 5 beta 1 jailbreak is already available. DevTeam released Redsn0w 0.9.8 b1.
For now the jailbreak is tethered (you have to run redsn0w each time you reboot) and available for Mac OS X only. It will not activate your device, so you need have registered UDID. iPhone 3GS users with 06.15 baseband: redsn0w will get you past the iTunes restore error. This redsn0w will probably work on future versions of iOS 5.
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.