I'm getting ready to leave and trade my "3g" 8gb iPod touch (MC086LL model) for the 2g model 8gb (MB528LL model). I have a few questions.. 1. If it comes with 3.1.1 otb can I downgrade and JB it since its 2g? 2. Is it worth the trade? Im pretty sure they are exactly the same. (Hardware wise) Ty for your help!