Thanks for your detailed response, cy8aer. I appreciate it.

I completely agree with you about the limited space on the device. Deleting the episode after it's been played is a prudent precaution, which I am quite happy about.

Some ideas about the GUI. Wouldn't it be parsimonious to combine the "inbox" and the "library" into one dialogue? The available and the downloaded episodes could be numbers on top of the podcast logo, i.e. 2/5 -> five available, two of those already downloaded to the playlist. Then, you'd only have one place for all the information. I have to admit I was at first confused about the "inbox". After all, I expected everything coming in should appear on the playlist (at least for my use case).

If the main aspect of the favourites is to "download" them into a different folder, how about calling that functionality "permanent download" or just "sticky"? By the way, I like the idea of a separate folder. That makes it easier to find the episode for transfer.

One more question about the archive. If the episode is removed from the feed, will it still remain in the archive? Wouldn't it be a good idea to completely remove it then, unless is has been downloaded (as a favourite or just lingering in the playlist)? Again, saving space might be an argument in favour of this. Why keep outdated data? Also, if you delete a podcast, the relating data should be removed. I have some trouble getting episodes automatically downloaded with on podcast (I must have limited to number of downloads to 2 when a whole avalanche of episodes appeared on the feed - ever since then PodQast has been refusing to download any episodes from that podcast automagically). So, I thought deleting the podcast from the library and then discovering it again might solve the problem. But everything just came back as before.