Yes, I think their objective, for the moment, is a sort of Gaza situation.
That said, I don't think they started out as very organized or with the Gaza objective in mind, but judging from the fragmentary reports we get, it seems as if this idea is now moving to the fore and they are demanding the resignation of Sarkozy and the establishment of their own Muslim "territories." I think the riots happened because a bunch of bored troublemakers saw an excuse for some action, and now are being encouraged by both internal and external forces and used to further an ideological agenda.
Agreed, it was just an excuse for rioting at first, all in a day's fun to some people. The burning of cars seems to have been a favorite tactic for many years in France, there have been apparently 28,000 cars burned so far this year alone!
But then the French Communist Party (PCF) and the Green Party started calling for Sarkozy to be fired, and of course the "youts" are picking up on that.
The PCF seem to be behind the spread of the riots to outlying cities. Commies know how to use anarchy to further their goals.