Yes. Most updates tend to patch jailbreaks, especially big ones like iOS 6.
YOU DOWNLOAD Evasi0n for ios 6
No, the Apple ipod 1st generation hardware does not support ios 6.
There is no such thing as an 'instant jailbreak'. Jailbreaking is a process. That iOS is jailbreakable, though.
YOU DOWNLOAD Evasi0n for ios 6
YOU DOWNLOAD Evasi0n for ios 6
No, only an iOS update will.
you need 4.0.1 to jailbreak it
Yes, there even going to soon make a jailbreak for iOS 4.0
No you just update form iTunes
Yes, you can. Go to jailbreakme.com on your ipod touch and you can directly jailbreak your iPod Touch from your iPod.WARNING: Make sure your ios version of your iPod Touch is 4.2.1 or lower or it will not work.
No, because it will just get rid of the jailbreak. Plus, there isn't another jailbreak yet for iOS 6 anyways, so i wouldn't if i were you.
Sn0wbreeze. Google. :D