Here is a little document containing more in-depth information regarding the features in the new Internet Explorer 6 Build. Here is a clip:

-Personal Bar & Contacts: The purpose of a Beta release is for us, the product team, to solicit feedbacks and bug reports from testers such as yourself. Thus far the IE 6 Technical Beta program has been very effective in this regard, identifying several bugs, and providing lots of feedback on what you like and dislike about the product. In one place in particular, feedback has been fairly clear. While some users, particularly more technically savvy users, liked the Personal Bar and Contacts features, the majority of users did not. The feedback we’ve received in the newsgroups and direct communication with beta testers tells us that simplicity, quality, and performance are top goals for the product, and that the Personal Bar and Contacts features were contributing to none of these. Rather than continue to expend resources on a feature that most of our customers would not use, we have made the difficult decision to cut the Personal Bar feature, and refocus our efforts on the basics of browsing, as well as other features such as Privacy, Media Playback, and Image Browsing.