When will Smart Groups become really useful?

Smart Groups are perhaps the most frustrating aspect of the DT 2.0 betas for me. At a minimum they should support tags. Right now I can’t even get them to support group names as tags, which I find bewildering given that group names appear to be the only primitive form of tags that DT 2.0 knows about.

Is there a milestone date by which Smart Groups are scheduled to stop being “Not-So-Smart Groups” and grow into their name? I for one would certainly appreciate some real tagging functionality.

As soon as tagging will be implemented.