This concerns me. Amazon Prime Instant Video requires HDCP via Silverlight. Support for this is pretty much non-existent in Linux drivers, so watching Prime video via Pipelight is limited to standard definition (no HD).

I worry that with EME/CDM will come a requirement for HDCP on other services such as Netflix. Inconsistent HDCP implementation will be another thing to fight on the video driver compatibility front (and let's be honest, I don't give a crap about HDCP support - it's a flawed system that assumes every user is a pirate).