Ready for Mobile Video Chat?

How much does the ready and easy availability of video chat add to the value of business communications? Some rumors that this will be the new ingredient in the IPhone hardware and operating system. A Computerworld debate on the topic. I am of the opinion that while sharing screens can add much to business interactions, an actual visual of the person's face does little. Of course I can remember debating whether color screens provided any value for a PC. It's very ubiquity may provide new dimensions to business connections.