Mobile collaboration tools can help improve disaster response efforts. The document discusses challenges with collaboration during crises like slow networks and lack of information sharing. It introduces four free and open-source mobile tools created to help address gaps: Mesh4X for data synchronization, GeoChat for location-based messaging, and mobile forms for collecting field data. The tools aim to facilitate real-time information exchange, analysis, and coordinated response during emergencies. The document also reflects on design principles for collaboration tools and ensuring broad adoption beyond just crisis scenarios.