So, you are saying that in the US, map data has no copyright or database right, and is effectively PD?<br><br>Let's think what would happen if map data cannot be copyrighted.<br><br>As an advocate of share-alike, I would be absolutely fine with this outcome. If PD is the only option *for everyone* in the US, then it is the ultimate copyleft. All the goals of copyleft/share-alike are immediately met. Noone can take that data proprietary in the US.<br>
<br>In Europe, we would still need a license to prevent proprietary forks.<br><br>So, even if you are correct, it doesn't matter. A license can still be used to enforce share-alike via contract, copyright and database right; if that license turns out to be invalid, then share-alike is enforced by the lack of copyright or database right on *any* map data.<br>
<br>Aled<br><br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
If I am a US college student with a Tor client, an SSL connection and a<br>
Hotmail account, I can grab the OSM tarball, remove the ODL, and upload<br>
it to <a href="http://archive.org" target="_blank">archive.org</a> or a torrent host.<br>
<br>
- Copyright doesn't apply because it's data.<br>
<br>
- Database right doesn't apply because I'm in the US.<br>
<br>
- Trade secrets don't apply because the data is publicly available.<br>
<br>
- I have violated the contract but I am completely anonymous and<br>
untraceable. Nobody can find out who I am to do anything about this. And<br>
OSM would want copyright restored not damages anyway, which isn't possible.<br>
<br>
So anyone can grab the now copyleft-less OSM data (outside the EU at<br>
least) and there is very little OSM can do about it.<font color="#888888"><br></font></blockquote></div>