HTC DROID Incredible - Manual (Page 56)

 Personalizing
To add an application icon on the Home screen, you can also press
HOME , tap , and then press and hold an application icon.
Without lifting your finger, drag the icon to an empty area on the
Home screen, and then release it.
Adding folders on your Home screen
Use folders to group related applications and other shortcuts to keep
your Home screen tidy and organized.
You can also add information folders that show up-to-date
information such as Bluetooth received files, your Facebook
phonebook, and more.