If you develop for VS Tools, you need this:
http://blogs.msdn.com/developingfordynamicsgp/archive/2008/09/23/menus-for-visual-studio-tools-the-wait-is-over.aspx
This brilliant piece of code was developed by David Musgrave from Microsoft, it allows you to add items to the menu bar in Dynamics. In other words, you can have Cards > Sales > MyCustomForm.
Way, way cool. Nice work, Dave.