[quote=Flamelord]Given what Dust is used for though, it does raise the question of what he needs all that Dust for.
[/quote]

Considering Torchwick is working for Cinder, and the little speech he gave about sticking it to the man, he just wants the Kingdoms' governments overturned so he can have his fun. He doesn't strike me as the kind of guy who has a goal other than what he wants to do. Cinder has an agenda, but we don't know what it is.

As for all of the Dust, we know it has a tremendous amount of energy. It powers weapons (and according to Roman, is what some bullets are made from), presumably the androids seen before, the Atlesian Paladin (considering that the SDC played a role in its development), and Yang's bike (possibly). But we've mostly seen its combat capabilities. Considering that Cinder's faction wants to start a war, it seems obvious that the Dust is going to be used for war. I mean, if I was starting a war, I'd want as much weapons and ammunition as possible. And with the White Fang, they have their army.