Yes
No. Updating the iPad's firmware will remove any jailbreak that has been installed.
If you sync with iTunes and get updates through the App store, it is not jailbroken. Updating the firmware will automatically un-break it.
Unless you want to brick it, don't. Wait until there's an update to your "Jailbreak" and then update. BE SURE TO UNJAILBRAKE YOUR IPOD BEFORE UPDATING!!
Updating the iPod Touch software erases the jailbreak. You can update, but it will erase your jailbreak.
Not At All...... But updating your ipod will remove the jailbreak
You can cancel your jailbreak by restoring your iPod or updating to the latest firmware
Simple answer: Yes.Only update when the Jailbreak you use has a new version / then only update the Jailbreak, not the iPod/iPhone.
Yes
Yes, updating the software of an iPod undoes the Jailbreak.
No, only an iOS update will.
No you cant the only way is restoring or updating your iPod
It is possible to reverse a jail-broken iPod. Usually, either restoring it or updating its software reverses the jail-break.