This past weekend, the Commercial Mobile Alert System went “live.” FEMA and the FCC are collaborating in this effort based on previously developed systems, such as IPAWS and EAS, and implemented because of The WARN Act. The system supports nationwide as well as local emergencies. But commercial companies are providing both the backbone and the end user apps to either supplement or replace government-issued warnings. Who will win and why? Will the public understand the difference and will multiple apps be necessary or should there be just one?