...at least for me. I'm not sure if everyone can see it yet. Below is a sneak peek ofa the new Contact Manager. If you're working in a small shop it looks like it can be a decent little CRM.
As for the main interface, not a whole lot has changed except for the inclusion of a dropdown menu.
The interface changes are nice but the main upgrade is speed. You'd almost think this is running on the desktop, near seamless experience. They actually prompted me to shut off Firebug just so it wouldn't ruin the experience. The Net Monitor intercepts all the incoming requests slowing things down a bit.
I'm sure I'm missing a couple items but that's all I have to report for now. Hope you get to check it out soon!