This Harbor Research paper explains the benefits of interconnecting devices for machine-to-machine communications using wireless communications based on CDMA (Code Division Multiple Access), cellular telephone technology. Such devices might include cars, the power grid, industrial equipment, and heart monitors. About 160 million cellular devices will be interconnected by the end of 2010. The technical advantages of CDMA, such as coverage, data security, network capacity, low latency are discussed. Application examples are presented from diverse fields such as transportation, healthcare, E-reader, smart grid, and asset monitoring.