Did you ever try this? It seems like from the settings in Pwnage, this should be possible... I wonder if, for those who really want unlocking more than they want Cydia/Installer apps, if it might not be worth it for stability?
I was initially unsure, but now after a couple of weeks with 2.x, I actually now am of the opinion that the app store apps are basically sufficient for my needs and I probably won't really need to install anything else.