It's not too spectacular, but I tried a bunch of different solutions and settled on this for my WP 2.6.1
However I wish there was a better solution. I still had to manually hack my /wp-admin/admin-footer.php to get rid of the "Documentation" and "Forum" links down there. Those aren't the Documentation nor the Forum of my website (it's WordPress's forum where you're reading this now), so those links were quite confusing for my site authors. I would like a plugin to address this.
I also want to hide that horrible new yellow stripe telling my authors to bug the administrator about upgrading from WP 2.6 to 2.6.1. Now I've done the upgrade, but that was embarrassing to the admin (me) for my authors to see a warning message about the backend software. I can't imagine who thought this "feature" would be helpful for site admins.