Just wondering there is current any way to control the order of navigation items in the Control Panel. Obviously not a deal-breaker, but was just interested in being ultra-crafty in my Control Panel layout for clients :)
Thanks to the P&T team and the latests update to Craft (2.3.2640), this is now possible through a plugin! https://github.com/engram-design/CPNav
I don't believe there is any way to reorder the CP navigation at this moment. The only way you would be able to achieve this is to create your own Plugin which injects some JS-magic on each page that adds your own custom HTML/CSS to replace the navigation or reorder the DOM-HTML tags.
I would not recommend this though..