This document summarizes a panel discussion on best practices and lessons learned in mobile learning from school leaders in the US. The panel consisted of representatives from Onslow County Schools in North Carolina, Encinitas Union School District in California, and Houston Independent School District in Texas. They discussed the goals and outcomes of their districts' mobile learning initiatives. Key success factors included connectivity, professional development, adoption by teachers, and student ownership of learning. The MTLC researcher then provided an overview of their research on contextual factors that support or act as barriers to mobile learning integration and their policy implications.