Let us create new items on the fly when multi-referencing a collection's items.
This way we can at least, quickly, create the "Name" field of this reference (and take care of the other details later).
Useful case:
Very useful for #hashtags. Almost all serious Blogs use #Hashtags as a "Sub-Category" system (click on the hashtag, it takes you to a "Category" kind of page with all the posts created that are referencing this #hastag).
Few lines to code. Many happy customers.
☞ Mockup attached.
Zacchino
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PS:
If the user created a pill by accident, he'll remove it in the collection it was created in. No need to bother them with extra confirmation popup on creation in my opinion.