[OSM-legal-talk] License clarification question

[Ævar Arnfjörð Bjarmason]

There's a license FAQ [1] which I think should answer your question.
whether your POI data is derived work would depend on whether you use
OSM data to place those POIs. I presume you have them already in some
database however and just wish to use OSM as a backdrop, in which case
that would be considered a separate dataset.

Any modifications to the OSM data itself however would need to be
published as the CC-BY-SA dictates.

1. http://wiki.openstreetmap.org/wiki/Common_licence_interpretations