I just noticed that formatted text in a note gets synced to simplenote with formatting tags like cintanotes. This makes some of my notes unreadable (especially those that make use of heavy formatting to make them better readable).

Ability to split a note into several based on some configurable separator (e.g. horizontal line)

evaluate notes by importance, e.g. 1 to 5 stars. 

Then sort notes by star number.

already searched with keywords "sort and importance"

The idea is to extend the existing "Paste notes into other applications on Ctrl+Enter" feature to look for highlighted text in the note, and display a list to select which highlighted block should be inserted into the target application (of course the option to insert the whole note text should also be present). 

CN should provide a possibility to drag any note from notes list and drop it to any place as .rtf (or .txt) file - editing the original note and external file would be fully synchronised. NOTE: It's not the same as sticky notes (http://roadmap.cintanotes.com/topic/11835-sticky-notes/) or expanding notes (http://roadmap.cintanotes.com/topic/3162-collapsing-expanding-notes/) or an simple export: http://roadmap.cintanotes.com/topic/3374-drag-and-drop-text-and-text-files-into-and-out-of-cn/. Original thread: http://cintanotes.com/forum/viewtopic.php?f=6&t=1667