First, I'd just like to say that the trunk version of .9 is looking really sweet. Very very clean. The drop down menus are looking nice.
Just some comments to maybe improve the drop down menu.
The menu is a little too smooth. My suggestion is that menus should appear immediately without a fade-in, like they do on computer menus. the fade should happen when the menu disappears.
Also, I find the fact that the menu stays for a little while excellent, however they seem to stick a little too long, as if they won't go away, but then they do. They don't stick when you go to a new menu item with a sub menu, but they do when you go to another menu without a sub menu.
It is also common practice to reverse out the current menu item as you roll over it. Not sure if that works with the subtle color scheme, but it could be nice.
last thing, sub sub menus should have a little > subtle triangle to indicate that there is more in the sub menu.
I can help with coding, just let me know where i'm needed.