iOS 4.1 expected today. Jailbreakers must stay away!

Dev Team announced today that all those who need jailbreak and unlock must stay away from iOS 4.1, which is expected to be available today through iTunes. Especially those who need unlock, they should not update in any situation as the update will also update the baseband from the device and there's no way to downgrade or to unlock it.

If you have SHSH saved for any iOS version before 4.1, you will be able to downgrade the iOS, but the baseband will be still blocked. Saving SHSH is highly recommended, because if you got any issues with your current jailbroken iOS and you have to restore when the iOS 4.1 will be available, it will automatically restore your device to iOS 4.1, situation in which you'll be stuck with an firmware which can't be jailbroken (and the saved SHSH allows you to downgrade the firmware).