Deciding that the iPad falls under the "laptop" category (but it's so much more!), Yankee Stadium has included it on its banned items list, forcing spectators to play with their suddenly inadequate iPhones instead. The news broke after IGN board user spacekatgal posted that she and her tablet were turned away at the gates, saying, "Why on earth would they have this policy? Terrorism concerns? I couldn't get an answer. I snuck it in under my jacket...I bring it to Fenway all the time and they don't care." Probably because she needs the distraction from the Red Sox!
Yankee Stadiums security policy page doesn't specify the Apple product, but bans any devices "that may interfere with and/or distract any sports participant, other patron, audio or audio/visual telecast or recording of the game or any technology-related service provided in Yankee Stadium." However, the rules are set on a team-by-team basis, and according to AP, the Mets allow the tablets in Citi Field. Perfect for a day of web browsing while enjoying some Shake Shack...with a ballgame going on in the background.