We’ve been trying to grasp why Apple keeps blacklisting useful apps. For example, the latest app blacklisted that we find extremely useful is Podcaster.

Now, Podcaster was built exactly to the SDK specifications and actually allows you to download and manage any podcast you would like on the fly. Sounds really useful, doesn’t it?

Well Apple decided that it shouldn’t be on the App Store for the following reason: “Since Podcaster assists in the distribution of podcasts, it duplicates the functionality of the Podcast section of iTunes.”

Think about it for a second. As David Chartier from ArsTechnica made clear, there are a clear abundance of calculator and stopwatch apps for the iPhone. Doesn’t the iPhone do that on it’s own already?

The developers are doing their best to keep this app alive by providing it Ad Hoc for a donation of $9.99. While Apple can shut that down at any point, the developers claim to be trying their hardest to keep everything together for at least one year. Check out their website for more info.