Ever since I first heard about a man using his BlackBerry to check into a flight - he was running late and didn't have his boarding pass - I've been wondering if this was just a one-off instance, or if it was going to become a growing trend. According to RCR News, Delta Air Lines is now allowing passengers at LaGuardia Airport in NY to use their cell phone as a boarding pass [1]. Domestic customers can now download their boarding passes to their phones via Delta's website [2] and go directly through security rather than visiting check in (if you don't have bags to check). OK, I seriously wish I had an excuse to fly out of NY using this new handy dandy service. Let's just hope other airlines follow suit!

Source [3]