Let me limit the nodes just like with Ansible.
Clarify the doc. Use sections to separate the live server and the next.
Speed up backups: accelerate is pointless for one command, don't gather facts.
Fix deprecation warnings. $var is deprecated in Ansible 1.4.2.
Ensure wp-jetpack cleanup doesn't explode on new nodes
Upgrade to wp 3.8. It's fucking awesome!