The routes file (https://github.com/NateW/obtvse/blob/refresh/config/routes.rb#L6) has
post '/edit/:id', :to => 'posts#update'
But it should be
post '/posts', :to => 'posts#create'
This seems to work but it seems to cause the auto-save to break as all the autosaves create new posts.
Will check this out this week, should be a pretty small fix.