agreed, playbooks would go a long way to making the mobile app extremely powerful:
Tradeshows: lead capture with information to pass on to the relevent team member using @ mentions while making sure consistent info is captured
Field teams: adding structured notes so a manager can see a consistent update to a deal, ticket, ect. not to mention the ability to coach your team to do better
Field service team: using a playbook to document work done at a service call