In reply to Donna Cavalier.

Agreed, though both of those plugins try to do quite a bit more and solve other additional problems. This one tries to do one straight forward thing that the largest number of people might find useful. At least from my perspective. So while i really like the notion of being able to categorize my media, those others might be a little more than what some need (maybe with the exception of Media Tags). Since it so closely replicates the experance of using tags and categories through posts, it creates less of a barrier for clients. It's nice when you don't have to really explain a plugin all that much.