I haven't noticed that menu in a while since I use gears on my MB Pro, it remains hidden after I installed gears.
It looks like the Turbo menu was renamed a while ago as turbo.php doesn't even exist. Go figure. Gears loads as part of Tools submenu on page tools.php. The submenu Tools->Tools can be hidden easy enough. I'll update ASAP.
As for the admin header link, use a jquery plugin, like http://sivel.net/wordpress/better-howdy/ , to reshape the admin header to deal with the link to Turbo there. I don't know enough about jquery to do that from scratch, but there's enough in the plugin code to experiment.
<href="http://wpmudevorg.wordpress.com/project/Menus">Update to Menus plugin.