Its android 4.2.1, Build Number J0P40D, it says my system is "up to date." Hopefully that answers the question about the jellybean version... It updated recently.
I was cradling the bottom with both palms and typing with my thumbs both times it went off.
Google's customer service sent me an email thanking me for calling the second time, but their message did not indicate if they had changed the shipping address.