Look to the future because new capabilities are being added to mobile devices on a regular basis. For many people, mobile phones have replaced landlines and with good reason -- their capabilities are far superior and sometimes more reliable. [Personally, though, that annoys me. Often, talking to people on cell phones means bad connections and poor reliability. -- Ed.]

As this new technology arrives on the market, it will benefit more companies and their sales representatives and other travelers. The more you can stay in contact with your office while you're on the road, the more of an asset you are to your company -- and that always leads to solid career growth.

David Gewirtz is the author of How To Save Jobs and Where Have All The Emails Gone? For more than 20 years, he has analyzed current, historical, and emerging issues relating to technology, competitiveness, and policy. David is the Editor-in-Chief of the ZATZ magazines, is the Cyberterrorism Advisor for the International Association for Counterterrorism and Security Professionals, and is a member of the instructional faculty at the University of California, Berkeley extension. He can be reached at david@zatz.com and you can follow him at http://www.twitter.com/DavidGewirtz.