The nice folks over at St. Catherine University in St. Paul, Minnesota have kindly shared their tutorials for getting started with ODK 2.0. You can see them here on the forum.
Check them out! They're a little outdated but a lot of the content should still be relevant. I'll be working with that team to be including them in the ODK 2.0 documentation refresh, so please post comments on that post with feedback you'd like to see.