According to latest news, newest Redsnow is Redsn0w 0.9.10 b4!
“1.0.5 Corona update is now live in Cydia which resolves the iBooks issue, along with the launchd socket issue. An initial update to version 1.0.4 briefly went live in Cydia, before Saurik added a force reboot on upgrade and pushed a new version taking Corona to the current 1.0.5 release.
If you have Corona installed as part of your untethered iOS 5.0.1 experience, then head over to Cydia now and simply upgrade to the latest version to fix iBooks and other bugs…”
“MuscleNerd of iPhone Dev-Team has just updated Redsn0w for both Windows and Mac to version 0.9.10b4 which incorporates the above fix for both iBooks and launched. The fix can be installed by simply re-running (uncheck Cydia option) this new version of Redsn0w over the existing jailbreak.”
Redsnow 0.9.10 b4 Works with such iDevices:
  • iPhone 3GS
  • iPhone 4
  • iPhone 4-CDMA
  • iPad 1
  • iPod Touch
  • iPod Touch 3G



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Redsn0w 0.9.10b4 has Released - New With iBooks Fix