MLB increasing Passbook support from 4 to almost half of all Major League stadiums in 2013

On top of just recently updating its At Bat 13 iOS app for Spring Training with a ton of new features, MLB announced at an event last night in New York that it will increase the number of stadiums accepting Passbook this season. According to a report from GigaOm, the number of stadiums accepting tickets through Apple’s wallet app will increase from just four to 13:

The teams that will start accepting Passbook tickets for the first time are the Minnesota Twins, Baltimore Orioles, Milwaukee Brewers, Oakland A’s, Pittsburgh Pirates, Detroit Tigers and Chicago Cubs. The New York Mets, San Francisco Giants and Kansas City Royals, which began accepting Passbook last September, will again offer the service this season. MLB says there are three more teams that will enable iOS tickets this season, but that are not yet ready to make an official announcement.

CEO of MLB’s Advanced Media Office Bob Bowman told GigaOm that iOS users currently make up approximately 70 percent of all At Bat users and around 85 percent of paid subscribers. The updated iOS At Bat app includes a classic games video library archive, re-architected app navigation, and searchable video highlight library expansion to include access to complete video archives.