"Hello world from comms center in (hash)Pyongyang."
That Twitter missive, sent Monday from Koryolink's main service center using my iPhone, marked a milestone for North Korea: It was believed to be the first tweet sent from a cellphone using the country's new 3G mobile data service.
Later, as we drove through Pyongyang, AP's Chief Asia photographer David Guttenfelder shot an image of a commuter walking beneath a bridge at dusk. We uploaded these images to Instagram geotagged "Pyongyang."
Pretty ordinary stuff in the world of social media, but revolutionary for North Korea, a country with an intricate set of rules designed to stage manage the flow of images and information both inside and beyond its borders.
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