In a message dated 5/18/2005 2:14:52 PM US Mountain Standard Time, 
plug-discuss@stcaz.net writes:
not subject you to GPL conditions, only distributing a version you have 
modified would do that.  The GPL is easy to understand and adhere to, while the 
"Open" license for Solaris requires a lawyer, and has a lot more dangerous 
clauses..

I find "a version you have modified" very hard to dissect.  Would it include, 
for examples:

-A packin config file, you modified to fit your needs?

-structures and techniques from GPL code?  (at what point does 'concept' 
blend into 'actual code?')

-examples from docs?

I find the line between 'use' and 'appropriation' and 'modification' very 
faint.