What's the most promising emerging technology to support virtual communication and doing business?

There are 2 promising emerging technologies which can be very usefull for the future workscape. The first one - WiMAX - is an innovative wireless communication technology which will provide the technological infrastructure with a promising alternative to WiFi. It provides high-throughput broadband connections over long distances. WiMAX will allow people to go from their homes to their cars, and then travel to their offices or anywhere in the world, all seamlessly.

Another promising technology is the concept of Virtual Communities. Virtual communities are considered a vital aspect of the Web 2.0 concept, which depends upon social interaction and exchange between users online. For businesses, virtual communities provide environments for professionals to share the body of knowledge of their professions such as similar working cultures, problem perceptions, problem-solving techniques, professional values, and behavior.