I think we all need to take a step back and look at who's pushing for DRM models. It's the major studios that provide content to all these tech companies. Apple, back in the day, had DRM on all songs purchased from iTunes. They had to fight the studios tooth and nail to get that lifted. And since then online music sales have sky rocketed. Now it's the movie studios doing exactly the same thing.

Yes, Amazon and the like do benefit from lock-in, but they also benefit from interoperability. Macs talk to PCs reasonable well these days. Mobile phones now work on a bunch of networks, and the list goes on.

Let's just make sure we point the finger at the right players.