A confusing array of products for desktop videoconferencing are available in the market. Workstation-based systems are generally proprietary, software-based products which run on the Unix operating system. Microcomputer-based systems, on the other hand, include proprietary and ITU-T compliant systems as well as hardware- and software-based solutions. Vendors of microcomputer-based systems include IBM, Picture Tel, VTel, Twincomm and WorldLinx., Yes, desktop video is available. But it's expensive and hobbled by limitations in connectivity and functionality. Now that videoconferencing has arrived at the desktop, it would be nice if we [...]