Dear Zentyal,
in a recenct Linux Special Edition, the popular German "c't computer magazine" gave an overview about several "out-of-the-box" linux servers distributions. For my opinion, the summary rates "Zentyal" more or less to be the most comprehensive free available Linux server distribution - together with Clerk Connect. Do you feel and impact of the article on your business, e.g. increased downloads, especially from "German IP ranges"? (I think the issue is out for sale approx. for 6-8 weeks)
Best regards
Thorsten