The capability of giving anyone a monetization channel. Mobile Podcaster is really good, but its just a recording/publishing app. The main features they have is to add intro and publish directly to WordPress. There is no editing to add commercials or ads that can monetize your podcast. Also the feature I'm talking about should be from the listener to the producer (not the other way around). So if I listen to your podcast and I want to advertise my site in it, I just select a "free space" on your episode and record myself or upload my ad.