Jehardt
Welcome to the Apple user discussion forums
not to be picky but terminology is critical in answering technical questions
In your subject you mention albums which are logical elements of an iPhoto library and all photos in an album share the same attributes because they all reference the photo in the event
In your post you speak of iPhoto files - I think you mean iPhoto libraries. If you are speaking of multiple iPhoto libraries there is currently no way to move photo attributes (like face identification) between libraries
The authors of iPhoto Library Manager -
http://www.fatcatsoftware.com/iplm/ - have indicated that they believe they can implement this and plan to release it in a 3.5 release in the future - right now they plan a quick 3.44 release to expand their current functionality to iPhoto '09 with the 3.5 release being later
So not now but maybe soon with third party software
LN