The Korean has a lot of reservation about this whole WikiLeaks thing, but one thing is for sure -- it is very enlightening. And unlike with other countries, maybe -- maybe -- the disclosures regarding North Korea might have a positive effect. They seem to show that China has a private disdain for North Korea, which will drive North Korea even more paranoid and unreliant on China.
Here is New York Times' collection of North Korea-related information from WikiLeaks.
Leaked Cables Depict a World Guessing About North Korea [New York Times]