my site
http://wireless-phone-reviews.com always ranked pretty well in google, alltheweb, lycos and others. when the new yahoo rolled out, i was shocked to find that my site was indeed in the index, but didn't show up at all in the serps for my keywords. then it hit me. i never got around to adding meta tags to my pages. so i added meta tags, and a week later, my site is #2 for "wireless phone reviews".
so just because google might not use meta tags doesn't mean you don't need them
edit: can a mod move this to the seo forum? thanks