actually there were some significant announcments in this area.
SK (owns cyworld and nate) finally had a conference announcing their new open initiatve and launched its developers platform ("DEV.SQUARE") with a general call for openness (though said they will likely take a different road than facebook). They even have a twitter account! LOL (interesting move considering local me2day player)
its all korean though so I've been working on a writeup but converting stuff into useable English soundbytes has been slow going.
SK Communication (SK telecom : korean's largest teleco)
NateON (korea's number one mobile platform and most popular instant Messenger)
Cyworld (Korea's biggest SNS)
Openness initiative + opened developer platform (api, sdk) giving them a chance to make money
first major step by big guns away from the walled-garden.
or should I say...first toe outside?
CAVEAT: still no where near what you' see outside of Korea or in terms of true "openness", so to speak. eg: only one's who would possiblity be able take advantage of this at this point are korean devs. But its a major step in the right direction.