Google has elected to drop its black menu banner from the Gmail page, and has created a grid icon on the upper right of the page which shortcuts to the Google Apps. Please make note of this change.
Also note that they moved your username/sign out option to the very upper right corner and if you use Google + that is now where your username/sign out location used to be.
In this example the picture is where Michael would click to sign out or change to a delegated email.
Some users may still have their email address in this location.