It would make a lot of sense to create a new look for 10.4, to set it apart from everything that has gone before, rather than going with metal, aqua, or a mix. Well they should decide on one look and then go with it for the new operating system. single window UI’s, but brushed metal for the Keychain app? What’s the point? I also wish they would update metal windows to something more subtle and less bulky.
I like metal on iTunes and “utilitarian”, i.e. I wish they would stick to the Aqua look whenever possible.