Probably not
"So is he really saying they had a breakthrough and cracked currently available encryption?"
No, but the vast majority of people is using equipment already back doored by the manufacturer and using cloud services. From there you can simply get it with a "national security letter" or something.
Also modern mobile operating systems are so vastly complex, that they are full of bugs and therefore probably full of security bugs which can be exploited.
Biting the hand that feeds IT
