I installed it on about 20 PCs today, then found that I couldn't hit texturizer or mozdev for updates. Guess they were too busy?
I notice that both it and IE6.xp2 seem to use the same system of putting program information in windows right below the address bar now. I like that. I also like the Yellow address bar that indicates use of https:
Also a more fully populated mycroft bar.
Lots of little bits of goodness, basically.