for me this is a very usefull plugin, I would like top update it by adding some more functionality.
1) Google picasa uses caption for title so an option to store caption to title.
2) if there is a taxonomy/custom fields available for certain IPTC fields I would like to add them to the post
3) would like to use the category if it available in the IPTC data.
I have done a few things but nothing that is good enough to publish.