In all seriousness, these are great consumer features. My only beef with IE8 is Chrome feels so much quicker, it is rather insane. Hovering over contacts in IE8 makes the process jump in CPU usage to ~45%, Chrome and firefox it is only a few percent.

IE needs to put some secret sauce into their javascript execution.

I have a few more thoughts.

For instance http://channel9.msdn.com/posts/Charles/Inside-IE-8-RC1-Overview-with-Dean-Hachamovitch-and-Jason-Upton/?CommentID=455612

IE is not horrible, it just isn't enough right now...

The feature allows the user to choose any web page marked content so that he can get live updated of the content separately from the browser. And here comes the point where Web Clip is well better implemented than Web Slices. Web Clip automatically transform the part of the subscribed web page content to a widget (Microsoft calls that gadget) which is permanently updated by DashBoard (the centralized widget engine in Mac OS X). The nice thing is that the user does not need to bother with notifications inside the browser to view the most recent updates of the content, every time, he views it, he can be sure that he has the latest update. Also he does not need to launch any browser to view it, as the web page marked content gets integrated in the widget environment Dashboard and to view it, only accessing Dashboard is necessary. In other words you get your subscribed  web content at any time you need it. And the engine is very powerful because any portion of a page can be transformed to a widget because Dashboard uses the webkit engine.

Sad that such channel9 videos tries to describe an innovation which is not, and sadly credit to where the idea comes from is not mentioned. It ok to take an idea from somewhere else, but don't make it sound as a Microsoft's innovation or new idea.