[da-anda]

• Interrogating the system configuration to see what other plugins are installed
  
• Metrics: logging what's been watched in their plugin is fine, allowing them to track what's been watched from a LIBRARY would be a very neat way to indirectly spy on what content the competition's providing.
  
• If two competing providers offer the same film at the same time, one offering it as PPV and the other including it in the subscription, how do you represent that in the UI?
  

As far as I understood the GPL is that the part that is interacting with the KODI APIs and internal objects needs to be released under GPL as well, so we'd be able to review the data retrieved from Kodi APIs. What we wouldn't be able to see is whatever else is happening in a closed source binary blob they might use to talk to their servers and aggregate the data.