If for some reason you don’t want to use redsn0w 0.9.9 to jailbreak your iOS 5, here is a good alternative utility – Sn0wBreeze 2.8b8. It can perform a tethered jailbreak for iPhone 3GS, iPhone 4, iPad 1, iPod Touch 3G and iPod Touch 4G.
As usual it will preserve your baseband (modem) version for unlock with ultrasn0w 1.2.4 or Gevey Sim.
iH8sn0w released a new version of Sn0wbreeze, the Windows tool that allows to jailbreak the newest firmware 3.1.3. This is a small update that addresses several problems with YouTube.
You can download the new version of sn0wbreeze from here.
We still recommend to use DevTeam utilities – redsn0w (Windows and MAC OS) and pwnagetool (MAC OS only).