Home key
To access the home screen, press the home key briefly.
Press the home key briefly again to access the menu.
To view the list of active applications, press the home key
for a few seconds. When the list is open, press the home
key briefly to scroll the list. To open the selected
application, press the home key for a few seconds, or press
the scroll key. To close the selected application, press the
backspace key.
Leaving applications running in the background increases
the demand on battery power and reduces the battery life.