As part o preparing a database for transactional replication it *is* MS advice to mark FKs, Triggers and Identity columns as NOT FOR REPLICATION *before* you create the publication. This has been the practice on my shop and therefore we don't consider it a "new" feature.

I have been "dealing" with the "new" functionality on the 2005 product ( I should write an article - or two - about that but have to find the precious time for it )