Apple announces Passbook travel / coupon on Wednesday . Mobile technology opens door to ` ` empty pocket '' travel . But is a post-9/11 world comfortable with the idea of merging personal cell phones into the airport security network ? Apple patent includes unprecedented wireless security features . Expert : Hackers would use electronic devices on Thursday .
Apple announces Passbook travel / coupon on Wednesday . Mobile technology opens door to ` ` empty pocket '' travel . Apple patent includes unprecedented wireless security features . Expert : Hackers would use electronic devices on Thursday .