Interesting idea, I figured I would put it out there to the world to see if somebody can think of a way to do this.
I'm looking to set it up so that I can have an automated SMS system create custom posts (with unique fields). It seems like SMS can send to email no problem, so it's entirely doable to have this be Email > Custom Post as well.
Here's the catch: I need the SMS to populate several different fields (title, as well as some unique custom fields associated with the post type) and the SMS is only separated by line breaks. I wonder how each line could be automatically designated to assign to a particular field?