[OSM-legal-talk] Monopoly City Streets

[Matt Amos]

On 9/9/09, Ed Avis <eda at waniasset.com> wrote:
> Iván Sánchez Ortega <ivan at ...> writes:
>
>>>>By the sound of that, it seems that they're joining up the GMaps data and
>>>>the OSM data, and filtering out the street names in common.
>
>>I think that their DB is a derivative work of the OSM data and that
>>share-alike should apply.
>
> Even if that is true, they are not distributing their database to anyone
> else.

indeed. one of the myriad flaws (as i see it, anyway) of the CC
license is that only the end-product needs to be shared-alike. if
they're only distributing tiles derived from the OSM database, but not
a merged database... well, the tiles are required to be CC BY-SA, but
not their merged database*.

cheers,

matt

*: as i understand it, anyway.