Development of Creative Commons licenses

[Daniel Carrera <daniel.carrera AT zmsl.com>]

Greg London wrote:
> If Alice and Bob both hold copyright on some work
> (the wrote a novel together, for example),
> then any derivative of that novel must get
> Alice and Bob's permission. Both.

No. Alice can modify the book without Bob's permission. Bob can modify 
the book without Alice's permission.

I see this happen every day at OpenOffice.org. Non-Sun contributors 
agree to a "Joint Copyright" with Sun, which means that they both have 
copyright ownership over this person's contribution. Sun then proceeds 
to re-license it under whatever propietary license they like and put it 
in StarOffice.

> I could be mistaken, though.
> I am not a lawyer.
> This is not legal advice.

I'm not a lawyer either, but I've seen from personal experience that 
your premise is incorrect.

Cheers,
Daniel.
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