You know how it goes -- "rules" are only "rules" if someone bothers to enforce them. And enforce Google has. While programs such as AdBlock, AdAway, AdFree and the like have been running unabated for quite some time now, Google has evidently buckled down and yanked the lot of 'em overnight. Of course, the company's Play Store developer agreement already makes clear that apps designed specifically to hinder the natural course of advertising won't be allowed, but it's certainly interesting to see the company finally making good on its words. Specifically, t