According to WordPress "Matt":
"this may be the last time you ever have to manually upgrade WordPress again. We heard how tired you were of doing upgrades for yourself and your friends, so now WordPress includes a built-in upgrade that will automatically notify you of new releases, and when you're ready it will download them, install them, and upgrade your blog with a single click."
The new dashboard lets you arrange items with drag and drop to put the most important ones on top. Also features QuickPress, comment threading, paging, and the ability to reply to comments from your dashboard (better GUI in 2.7), and the ability to install any plugin directly from WordPress.org with a single click. You can even mark a 'sticky' post to give it prominent position.
Here's a screenshot of the Dashboard:
Check out the video demo of WordPress 2.7 "Coltrane":
Download WordPress 2.7 now or check out the full new features list here
Full Disclosure: This site runs on Movable Type (MT). I've been running on MT since v3.2, before WordPress even existed. Just haven't seen the need to switch now after countless hours of customization, plugins installed, etc. They're both good blogging / CMS platforms. Congrats to the WordPress team for a nice release. I may just finally have to play with Wordpress just for the fun of it.