As you can see the new design is live, which means WordPress.se has been officially launched, and is no longer a Beta site! Congratulations! Also thank you for the feedback on the design. I was able to make some changes based on your input, and I think there's still room for fine tuning.
If you're still seeing the old favicons, load the follow two urls in your browser and hard refresh:
If you see any CSS/Usability bugs, please start a new post, and tag it with "Design" and "Bug" so I can track them easily.
There was disagreement about tag styling. "< >" vs. etc. I don't have a strong preference, however I do feel "< >" is more HTML-ish. I'm launching the site with it right now, but I'm open to tweaks.
I typically fix CSS/Usability issues right away. As for subjective requests based on personal preferences, I tend to let the design simmer a bit. After all, it is a different design from the Beta theme you're used to.
Once again, congrats!