I wonder if it would be possible to insert the old Safari app and jailbreak with Jailbreakme..
*facepalm* yeah, but how to replace Safari app if it isn't jailbroken.. oops
This post isn't useful except if someone finds a way to replace the Safari app, but then, will the iPod be able to reboot? Because maybe the exploit that makes the jailbreak untethered has been patched in 4.2 (Probably)