Well that really depends, What version is your iPod. Every version can be jail broken, you just need to specify on it and I will gladly answer your question.
they said four gen. AHA. your a smart one..
redsn0w
i don't know someone tell me please
No currently there is no jailbreak available for the ipod touch 2nd gen
You can use several tools to do this. Just google "iPod Touch 4th gen jailbreak" to find one that suits your needs
You can use Greenpois0n...connect ipod and run the program, then follow instructions
Suck my balls
Yes. You have to jailbreak it though. Just google jailbreak iPod touch, and whatever gen your on. Then search for ipod touch flash on YouTube and follow guide.
Yes. On your iPod 4g, go on Safari and search for Jailbreak sites.
You can use a new jailbreak called "spirit jailbreak". Google it. alternativley you can downgrade your firmware to 3.1.2, then use Blackra1n.
It depends on what ipod gen. you have. For ipod touch generation 1, 2, and 3, you can't put a background unless you jailbreak your device and get the right app from Cydia. For ipod touch generation 4, select the picture you want and set for your homescreen or wallpaper. As far as I know you don't need to jailbreak Itouch 4 to set a background. :P
Use Quick freedom! It's the best!
There is only reason for why an iPhone needs to be jailbreak. The reason for a iPhone to be jailbreak would be for using the phone for a different service.