I updated to the latest trunk and I saw the new menu. I was confused for a while how I would figure out what the icons mean and how I would navigate around.
Then I noticed the two little arrows above the menu that pull it out. Setting it to show the name of each tab is very nice actually and how it remembers the menu pop-outs is nice as well.
But it should be popped out by default. It's hard for new users to know what to do with icons that are barely distinguishable from each other. Allow advanced users to collapse the menu if they feel so inclined.