Currently, Embedded Media Field has Embedded Thumbnail, which allows editors to override the thumbnails provided by third party providers. I originally just copied some code from Image Field to handle it, after toying with (and rejecting) the idea of creating some sort of generic image handling api to help modules needing the functionality.
During the port to d6, the idea has come up of requiring FileField to handle the thumbnails. Before we get too far down that road, I want to run it by other developers for feedback. Is that the best route? If so, we have weird issues of how to synch fields, or just tapping into its API.
Or should we just wait until d7 to handle that, since hook_file will make a lot of the functionality we need for this MUCH easier.
Thanks,
Aaron Winborn