CNN used this type of interactive video wall during its election coverage and now it's available for events. PSAV
offers two standard sizes, each using 46-inch square screens configured in either a two-by-two or three-by-three format. The company can also create custom screens of any size. The wall operates like a large iPad with about two dozen apps to create maps, presentations, and games. The product can be used as a presentation screen in educational sessions or in common areas as interactive digital signage, for example to provide venue maps and sponsor information. At a trade show, the wall can display exhibitor logos and information when users click on a specific booth. Within a booth, users can input their email addresses to receive additional information, creating an instant lead retrieval system.