Support Enclosures? Custom atom fields like 'photourl' or 'media:image'?

Would it be possible to extend this module to also support a use case where another element in the feed contains a simple URL to an image, and that URL is used to attach an image to a node's imagefield?

I can understand that a lot of people want any images appearing inside the body of a summary (with a certain class or something like that) to be scraped and pulled in as an imagefield. However, for my use case, I have a feed which has a text summary, then another tag (<photourl>[url here]</photourl>) to give a location of an image.

It would also be great to be able to support enclosures and image/jpeg importing... I heard SimplePie is supposed to offer support for enclosures being mapped to image/filefields, but I've had hit-or-miss experiences with that. This module sounds like a much better solution.