[OSM-talk] open data

[Paul Dixon]

(slightly off the topic, but I wanted to qualify the statement below...)
> Using your Linux example, there's nothing saying that programs you run on 
> Linux have to be GPLd. If you want to hack on the linux kernel, your 
> changes have to be GPLd. 
Your changes have to be GPL'd but *only if you release your modified 
GPL'd software to the public*. If you are just hacking GPL'd software 
privately, you do not have to release your changes.
http://www.gnu.org/licenses/gpl-faq.html#GPLRequireSourcePostedPublic

I know that's probably what you meant in this context, just wanted to 
correct any potential GPL misunderstanding :)