Messaging between embedded control and intelligence devices [1] may not be the sexiest topic in wireless communications, but it could well be the most important. Just as Bluetooth allows communications between devices that are within a short cable's distance of one another, M2M (Machine to Machine) messaging can allow devices separated by miles or oceans to communicate with one to another. M2M is rapidly changing as analog cellular networks are replaced by digital networks, and the change is being reflected in greater certainty in message delivery and timing--not to mention a higher bandwidth available for messages. The market is predicted to grow beyond $8 billion a year--though this market's impact could grow well beyond those economic measures.

For more on M2M applications and growth:
- Read the hand's on analysis [2] at WirelessWeek