This looks promising - I've been looking for something that can edit tags directly inside iTunes, so I installed the demo and went to some songs I know need better tags. Unfortunately, although I like the interface and the concept, the 1.0 version fails to find all the songs I tried it with. I know they're in CDDB and the free databases.

Some thoughts for the developer: If the tags are wrong, how do you expect a search based on them to work? Maybe give the user the ability to modify the search? Maybe do albums all-at-once?

Looks good though, if and when it can be made to work as promised. I will definitely keep an eye on it.