IPTC Keywords - EXIF

Any chance that tags on images could be stored in the filed images using IPTC keywords (iPhoto, Picasa).

Could you explain a bit about how this would be useful for you?

utility
If I file an image in EF, and add metadata like tags, then hand off to iPhoto, or look at things in the library with Picasa I would have keywords already applied and be able to use them in smart searches within the applications.

Trying to come up with a workflow on file acquisition that has me file and tag as soon as I download/add things to my system.

I would dearly love a system-wide tag framework that would allow me to have common tags/keywords across all of my “filing” applications.

Noted, thanks.