i'n sure there are better ways to do this, but the first thing that came to my mind was sending something on the clipboard to my iPhone with a predefined action name that woudl compose a Drafts actions to carry out upon receiving the te text from the desktop DropZone.
Example: copy a news clipping, drop iit in dropzone, run the action, send it to my phone, with an action in the url scheme action to run a drafts action named "add reminder".
Of course this sound very basi can could be handle in other ways, just trying to figure out what would be something basic that I could work off of if possible.
Thank you.