[whpalmer4]

The URL method for adding tasks was introduced in the 1.8 development, so yes, it only works for recipients running the Sneaky Peeks at the moment, though the email does have all the information you would need to type it in yourself, as I recall.

The URL method only supports adding one task at a time at present, and it only contains the action name and the note.

omnifocus:///add?name=hello%20world&note=text%20and%20http://example.org/%20link