The document discusses two strategies for mobile organizing:
1) Hub and spokes model where a central organizer controls the recipients, message, and timing of SMS messages. This allows for control but is expensive and requires building a contact list.
2) Network model where organizers send out SMS that recipients can rebroadcast to others in their own network. This distributed the costs and does not require a contact list, but organizers have no control over recipients or messages. Redundancy is needed.
The document suggests trying out both models and mapping out a mobile outreach campaign.