I just learned that Sitecom has filed a letter of appeal against the preliminary injunction. Apparently they argue that Sitecom Europe B.V. in the Netherlands is responsible, not their German subsidiary, Sitecom Deutschland GmbH.
This is so disappointing. What kind of business practise does this show? Oh yes, we use GPL licensed code in our products, and yes, we don't respect the license terms. And by the way, our German subsidiary is not responsible, it's the Dutch mother company.
I intend to use any legal means, including a lawsuit in the Netherlands, to get Sitecom to fully comply with the GPL.