The FSA has arrived or came about in Salaheddin
This is a first in the city, very different from Damascus where there have been coordinated attacks by actual FSA battalions in extremely sensitive areas. What we see here seems to be much more local and organic, rather than anything the Telegraph article above alludes to. Whatever the case, it looks like the start of a new phase for Aleppo. There are reports of tanks entering the city and many Shabbiha roaming around. In the meantime, the countryside is an absolute war zone with numerous towns being shelled and fought over. Much of the shelling actually comes from inside the city.