I am sorry but this all looks like DRM to me. Currently there is DRM on eReader files that have no need for locking to a device. The lock is to a credit card number and the purchasers name is in the file I believe but not used for unlocking (decryption). Also there are systems based on passport that have multiple device support from Adobe and Microsoft. Other systems have multiple device support as well and as such the number of devices could be changed it needed.
How is this different? I know technically how decryption is different. I am asking how it impacts less and offers and improved user experience over say eReader.
Dale
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