Let's get right into it:
1. The "Stay logged in" checkbox on the login page doesn't currently work.
2. The account settings options on your settings page are being worked on still.
3. The Mojang Service Status now has a "Last checked" and "Next check" time indicator so you know how up-to-date the service status is.
4. That's really it right now.
We'll see what gets done going forward. I'm currently spending most of my time making a little web game right now. You can follow that progress over on Facebook