I think you might have missed one minor possibility. What if the RIAA is trying to put a stop the P2P networks giving away music free just so they can make their own similar network but charge for it instead. Would you be more inclined the get it free off P2P or pay for each song off the RIAA network? This is the only logical explaination other than just sheer greed I can think of. I think they know the internet and downloading is going to be the wave of the future and they are just trying to secure their intrests in it. Only way to do that is to crack down hard on the current free P2P networks. I wouldn't be suprised to see this from other media industries aswell.
From what I can see downloading what you want when you want it from anywhere you want to in a near instant process is rapidly approching reality with all this modern wireless bandwidth tech coming out. I think they are doing what they can now to make sure they can take advantage of it when it does become a reality.
Kinda like the pre-imtive strike on Iraq. Take them out before they can take you out.
