We’ve been telling you 3Gs users for a while now to save your SHSH files to ensure once jailbroke always jailbroke. Well, its your last chance. Apple will be dropping iOS4 withing the hours, minutes, maybe even seconds.
So read the tutorial here and get those files saved. Even if you’re upgrading to the new device, and selling your iPhone 3Gs, help out who ever your selling to and increase the value of your device.