Netscape The Eight
Netscape 8 is now officially out of beta and now based on Firefox 1.0.3 -- interestingly you can render pages using Mozilla or IE engines which could come in handy when developing websites. I am downloading it now, let's hope it's not as bloated as previous releases. Oh, it's already asking me if I want "FREE Current Local Weather" and "access to over 250 top puzzle, action and arcade style games", this isn't looking good...
UPDATE: Actually, it's not all that bad. The IE/Firefox rendering is very useful, the interface quite clean and fast and while quite loaded, fully customizable so with a bit of tweaking it can be pretty lean.