Good idea, I agree.

Additional info:
"When creating a new note using the global "clip text hotkey" german Umlaute are not supported. Example: open a link "http://www.jufö.de" mark some text and create a new note. Now the URL get's wrong for the link field. You can correct the link inside the link field, which will open the link now. This is really a minor issue to me. No need to fix for me. But i wonder whether character sets for other languages might fail as well."
http://www.cintanotes.com/forum/viewtopic.php?f=6&t=1255

Reopened

Fixed in 1.5.6