Neighborhood clients presents a dynamically changing view of the user space. They are using the protocol introduced above to retrieve information about the position of the user, the surroundings, other users and their properties. The protocol is encapsulated into HTTP requests. This guarantees compatibility with components augmenting the Web such as proxies and firewalls. A Unix-select like mechanism is used to notify updates to objects and variables.
Visitors can look at cars and talk to a virtual sales representative.
A simple click on a person's icon initiates an Internet phone connection, if such tools are available at the user's site. The client-based part of the system, the user interface is written in Java.