I gave you all a few of my early impressions of the IE 6 tabbed browsing implementation available in the new MSN search toolbar with tabbed browsing. I was pretty harsh and upon further reflection, I'm still comfortable with those remarks. It is a piece of crap.
Now, what's amusing to me is that I had some assumptions (unexpressed at the time) that since IE 7 was going to be a completely new beast, they'd be able to build a smarter feature there, and that it would be less buggy. Maybe they'll get the less buggy part, but from what I've read over at the IE blog and adam style's blog it doesn't look like they're going to get the smarter, more usable part.
All third party toolbars are going to reside inside of the tabs and have an entirely separate instance for each tab? WTF?