just wanted to throw an update here from my personal experience tonight
i personally though that if i updated the ipod touch 3g to 3.1.3 then i was stuck until the 3.1.3 jailbreak was out, because i didnt backup my SHSH but thats not true
here is what i did today
i updated the host file to reference 74.208.105.171 gs.apple.com
then restore to 3.1.2 then jailbreak with blackra1n again
so you do not need your SHSH backed up for the ipod touch 2g MC to downgrade and jailbreak like you do on the iPhone, funny no one on any of the boards mentioned this..
updated on the matrix now...
just so you guys know if you go to the actual site, everything that says YES and is blue, has a hyperlink to a guide on howto do it behind it, there are 32 guides depending on device and firmware version... this took a long time...
alot of people are missing this because of the preview image
