Bill Walton wrote:
Cameron,
The key issue is, I believe, whether or not a GPL (or any other license) *can* be applied to a work that the author has already explicitly licensed as Public Domain.
Public domain is definitely not a license, it is more a state of being, and there is no copyright for VistA as the US Government cannot hold a copyright from what I know. The bottom line is that anyone can do whatever they like with VistA as public domain.... and have been doing so for many years... and it is quite possible that parts of VistA could easily be inside commercial applications that are being sold today.... and you would never be able to find out because you don't get to see the source code.
What is more important to consider is what the objective the license is intended to achieve.... so what is that objective(s) with respect to contributions to VistA...????
Joseph
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