In recent months I have started listening to various podcast via Amarok. The problem is when a host assumes that I listen from a web browser and have the show notes in front of me. I have simple idea on how to fix this though.
Either add a tag to the RSS standard (or re purpose one such as <comments> or <description>) to put the show notes into (or link to them) and place a collapsible web view in the client.
Some time in the coming weeks I will mock up a proof of concept application (UI and sample data only, no network support) to show what I have in mind and try to get in contact with the RSS committee.