
At Pepsi's party at South by Southwest, a leaderboard showed which guests were dancing the most based on data transmitted by their Lightwave wristbands.
Photo: Natalie Cass/Getty Images for Lightwave

Perch can highlight the features of a single product, or it can hold as many products as can fit on a table without overlapping.
Photo: Courtesy of Perch Interactive

The system can also be used to display hors d'oeuvres. When a guest picks up a small plate, a graphic appears.
Photo: Courtesy of Perch Interactive

In this example, touching one of the cameras causes it bring up a simple interface for learning more about the product.
Photo: Courtesy of Perch Interactive

Picking up a shoe can reveal more information like customer reviews, materials, price, and sizes available.
Photo: Courtesy of Perch Interactive

Touching each one of the bottles results in an explosion of colorful fruits and chime-like sounds.
Photo: Courtesy of Perch Interactive

One of the most popular stops of the summit was at the TigerDirect Wheel of Technology, which awarded tech prizes to those who tracked visits at 20 different exhibiting booths.
Photo: World Red Eye