?'s Keywords/Spotlight and Address Book nicknames

One of the ways I'd like to use Spotlight's Smart Folders is as a way to create "project" folders like Entourage creates (I don't like entourage's interface that much, which really gets to me cause the idea is good). I figure one of best ways to make sure certain files/folders are able to be kept track of is thru the metadata in the comments, using keywords. So, any chance there's already a way (or going to be a way) to easily "tag" my files, a la Keyword Assistant for iPhoto?

Second, has the whole Address Book problem with not using nicknames in Mail been fixed with Tiger? or is that still a thorn in everyone's side?

AddressBook nicknames?

anyone? what's the deal with nicknames? doesn't look like it's been updated, which is really a thorn in my side...