This year’s technology survey found that more than a third of real estate practitioners—34 percent—now rely on GPS navigation for help getting around. The technology is evolving in two directions: hardware and service.

On the one hand, you have hardware systems like Sony’s Nav-U line, TomTom’s car navigation systems or the Gamin nuvi 880. But you'll likely see more GPS capabilities becoming a function built into other hardware, or provided as a service, rather than requiring a dedicated device. For example, services like Verizon’s VZNavigator, AT&T Navigator, Sprint Navigation, and Telenav offer point to point directions on your cell phone.

http://www.realtor.org/rmotechnology/techwatch/columns/0812_techwatch_2009trends