Yes, you lose most in-app saves, but no downloaded content, and it's free.
Yes, restoring your iPod will take off the jailbreak, and you will have to jailbreak it again.
Of course...by restoring the ipod.
restoring is the only way
by knowing the passcode, other than that, restoring is the only option.
Yes, restoring your iPod will clear all contents on your iPod.
for sure
restoring the ipod to factory condition, loosing everything
yes, by restoring it.
Try clicking the home button
restoring to factory condition
When restoring your Ipod Touch the data on itunes doesn NOT get deleted. :D
Unless you "Transferred Purchases" to your iTunes or made a backup of your iPod, there is ABSOLUTELY no way to.