Toward the end of 2006, a glut of competent smart phones costing US$200 or less hit the market, which is two to three times less expensive than similar phones had been previously. These phones include the , Samsung's , and the . This trend will lead to far broader adoption not just of smart phones but also of many applications.

"I have a friend who drives a backhoe -- he's a construction worker -- and he got himself a BlackBerry Pearl," said Derek Kerton, principal of telecommunications consulting firm The Kerton Group. "If I get an SMS message from a friend, chances are it's from him." And that level of communication will increase even more, Kerton predicted, when his friend sets up the device for sending and receiving e-mail.

The other top mobile and wireless story for 2006 was Sprint's announcement that it would build a $3 billion nationwide mobile WiMax network, which it expects to start rolling out by the end of 2007. Sprint will use an enormous chunk of wireless spectrum it inherited when it merged with Nextel in 2005. No other U.S. mobile operator comes close to having that amount of spectrum available, making it highly unlikely that any of Sprint's competitors could launch a competing network.

"The Sprint announcement is the coolest and wildest and most risky gambit we've seen in the wireless industry in quite some time," Kerton said. "They said,'We have an asset that nobody else has, and if we're successful, we'll have a sustainable advantage that nobody can match for years to come. And if we're wrong, we just bet the farm.' "

Skeptics claim that Sprint's network will fail because it is expensive and redundant with Sprint's existing cellular 3G EV-DO network. Sprint says it's certain that , as its network provides fast, cheap nationwide mobile access for laptop computers and a plethora -- it hopes -- of other mobile consumer devices, leaving its EV-DO network for delivering media and other content to cell phones.