LJ Talk: How about receiving and posting comments?

My suggestion concerning LJ Talk just went to moderation. In the meanwhile, I’m posting its essence here:

I just discovered the joy of posting to my LJ through LJ Talk. But the comments for an entry still come through e-mail, and in order to respond to them I have to use a browser. Wouldn’t it be awesome, if I could have those comments come to me through IM, via Frank, and then respond to them simply by talking back to him, maybe by preceding my response with a “re: ” or some other keyword?

The feature could be turned off, for those who wouldn’t find it as useful as I would. Maybe it could even be an “opt-in” setting, defaulting to “off”, on my settings page.