If that ends up in favor of RIAA, that will be a very chilling precedent: that when a client-server application has a UI to perform a client-side translation of user i/o into a more readily transmissible format, you are authorized only to interact with the UI, and you must not touch the translation thereof, at least if the application is handling copyrighted material.
A technologically illiterate company going up against the EFF, the leaders in tech litigation. That's not going to go well for the RIAA. Also, the EFF have github on their side now.
