What you are looking at is a draft of the main toolbar of Netscape 9.0, running on Windows XP.
Netscape 9 will be a standalone browser, and from this screenshot, you can infer several things: unlike Netscape 8, Netscape 9 will contain more standardized support for newsfeeds (a.k.a. Live Bookmarks); it will also have tight integration with the Netscape.com service, as evidenced by the icons for the two available Netscape.com extensions (Friends' Activity Sidebar and the Sitemail Notifier). Several Netscape.com-based extensions will be built into the browser; only these two have been previously announced.
I'll be posting a new announcement, feature teaser, or progress report right here each Tuesday, so stay tuned.