Hello Riki,
Thank you for the kind words.
1. Yes, this phrase was overlooked during translation, sorry for that. It will be translated in the next update. As for the icon - we can't promise anything because the program icon is part of the brand/copyright. We do not provide or sell white labeling.
2. So far RU Server is only a Windows program/service.
3. A stripped down version of the Viewer has long been on our wish list. We'll see if we can implement it at some point in the future.
4. We'll check that, thanks!
If you have other questions, don't hesitate to ask.