Is there an application that moves menulets from the menu bar, and shows them in a little window? Is there a utility that shows the menulets in a window in the style of the old Control Strip (which means a window that automatically shows and hides)?
It's not exactly the style used by the old Control Strip, but Bartender hides the menu extra icons, and show them in a little window that appears when clicking on its menu extra icon.


  
  Lets you tidy your menu bar apps how you want.
  See your menu bar apps when you want.
  Hide the apps you need to run, but do not need to see.
  Have the clean looking menu bar you want.
  Rearrange your menu bar items as you wish.
  




For each icon shown in the Menu Bar, it let you decide where the icon should be shown (Bartender Bar versus Manu Bar), and how long the item should be shown when it is updated.