You are wrong!!! In case of Montenegro we see,that five years after the UN-admission circa 50 countries still do not maintain diplomatic relations with the government in Podgorica. And as long as these 80 states are not officially recognizing South Sudan,we cannot talk about a recognition. The UN-recognition and the biliteral recognition are two different things. Countries like Georgia or Azerbaijan with serious seccession-problems in their own countries may have agreed,that South Sudan will become a member of the UN,but they may not recognize South Sudan as an independent country,which means,that they will not recognize South Sudan outside the UN and that they will not establish diplomatic relations.
Sascha,Germany