The screens will be the first installation of a product Cisco announced on Tuesday in Manhattan, called Cisco StadiumVision. They also are the most visible element of a larger plan to use networking to enhance the audience experience at the stadium, which will open in April 2009. Cisco Chairman and CEO John Chambers and Yankees Co-Chairperson Hal Steinbrenner unveiled the plans at a press conference at Cisco's New York offices.

StadiumVision, designed specifically for stadiums and other venues, takes advantage of a technology called digital signage. The concept takes advantage of flat-screen displays and wired or wireless networks to provide signs that can change depending on time, situation and specific location.

At Yankee Stadium, they will show live games in progress throughout the stadium, including in the Great Hall, the Yankees Museum, restaurants and bars and concession stands. After games, the screens will be able to switch to giving useful information keyed to each location, and in case of emergencies the displays will give evacuation directions, according to a Cisco press release. During non-game events at the stadium, the screens can show other content tailored to the occasion.

Both small and large enterprises have shown interest in digital signage, IDC analyst Tom Mainelli said earlier this year. A requirement they sometimes overlook is the need for plenty of fresh content to keep visitors from getting bored, according to Mainelli. The Yankees are likely to struggle less than most companies with this issue.

Also coming at the new stadium will be IP (Internet Protocol) phones in luxury suites that fans can use to order concessions and merchandise for delivery to the suite.