I found out that the page <b><a href="http://wparcade.com/" target="_blank">http://wparcade.com/</a> </b>listed on <a href="http://wordpress.org/extend/themes/commercial/" target="_blank">http://wordpress.org/extend/themes/commercial/</a> doesn't offer any GPL themes.<br>
<br>They are released under a custom license:<br><br><blockquote style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;" class="gmail_quote"><h3>Theme Licensing & Usage</h3>Please read the following terms and conditions carefully. By
using the website and ordering a theme, you agree to the following terms
& conditions. <br>
- Themes purchased at WPArcade.com must be installed in only a
single domain name. Multiple Installations of the same template in
different domain name(s) are strictly prohibited. Unless you buy
separate license for it.<br>
- Themes purchased at WPArcade.com are for the exclusive use for
those who purchase the themes, they cannot be resold to any third party
under any circumstances.<br>
- <strong>You are not allowed to resell or redistribute our themes,
modified or unmodified, to another person, nor can a user place any of
our themes, modified or unmodified, on a website or any other medium for
distribution or be included in any service or other without our
permission.</strong><br></blockquote><br>Such site should not be listed on the "Commercially Supported GPL Themes" page.<br><br>Best regards,<br>NetReview