If it's encrypted all the way to the hardware, then it get's a bit more believable. But that really can't be done on the web, can it? "You no have DRM chip? No tubez for you!"
Come to think of it, in theory the Raspberry Pi could support a DRM scheme that's entirely "open source" in the same way that their graphics drivers are already. Basically, the GPU is actually a fairly powerful processor running a binary blob that receives messages from the ARM CPU - if it did all the decryption the CPU-side code could be entirely open.
