It looks like the German vibe went through Poland too, so it should be quite usable in Poland. Btw, it’s free to edit the map. If you see something wrong or a missing feature (even something trivial as a housenumber), you can zoom in to the right posistion and click “edit”.
If you have questions about how you can use the data for certain purposes (like for navigation on your smartphone), search the Wiki (the documentation link at the left of this page), or ask it here.
There is already a lot of software written for OSM, but don’t expect everything.
Discussion
Comment from Sanderd17 on 5 June 2012 at 06:48
It looks like the German vibe went through Poland too, so it should be quite usable in Poland. Btw, it’s free to edit the map. If you see something wrong or a missing feature (even something trivial as a housenumber), you can zoom in to the right posistion and click “edit”.
If you have questions about how you can use the data for certain purposes (like for navigation on your smartphone), search the Wiki (the documentation link at the left of this page), or ask it here.
There is already a lot of software written for OSM, but don’t expect everything.