Unfortunately, users may not know a network does not support 911 services until they make those calls.

A stoppage of BlackBerry would cause major havoc. CEOs use them, doctors use them, Wall Street guys use them.

Telecommunications billing systems are large, complex entities that have to be integrated to support the new services.

GPS systems only work within certain ranges. If a user is inside a building, the system may not be able to see him.

The wireless data market will die a thousand deaths in the business and consumer markets as service providers navigate their way through the quagmire that is legacy networks and technologies.

If 1999 saw the introduction of some very early offerings, the year 2000 will be a confluence of a ton of these devices.