AT&T Park, the home of the San Francisco Giants, was the first baseball park to install a wireless network.
It took Apple’s iPhone to bring it alive.

Giants warm up for a game. 70% of Wi-Fi traffic at the park comes from iPhones and iPods
The network came to the stadium in 2004, at a time when some laptops sold without built-in Wi-Fi chips.
In 2007, traffic saw a gargantuan 573 percent boost per capita, says CIO Bill Schlough. The cause was the iPhone and the iPod Touch.
Today, 70 percent of Wi-Fi traffic at the park comes from the devices, with greater volumes on weeknights rather than weekends. It is not unusual for 3 percent of fans to be online.
At the top of the list of popular destination is a Giants’ sponsored replay site that posts controversial plays three minutes after they take place.