With the introduction of inexpensive portable devices that can render multimedia content, several other projects have developed prototype or commercial systems for museum augmentation or navigation with handheld and/or wireless technologies (see projects presented at the Electronic Guidebook Forum [7]). The use of technologies such as PDA’s and Pagers has provided a means by which museums can communicate with their visitors in a more personal manner. The San Francisco Museum of Modern Art, for example, uses static and local content on a PDA, including a short video clip of the artist explaining their work, to provide visitors with a different perspective about the exhibits. The Experience Music Project [8] in Seattle uses infrared beacons at which the user points their device to select relevant content.