There’s a new version! I’ve made some changes to tag suggestions – tagyu suggestions work again, for reals; and I’ve gone backwards, and yet forwards, so you can now choose whether you want suggestions from tagyu, or the yahoo! term extraction API.
If you have been using simple tags, you can now do a mass import of your tags, from the Manage > Tags page. (I have a feeling that if you tinker with the start and end delimiters, you could probably get it to do an import of generic tags…but I haven’t done it myself (: )