One of my favorite features of BlackBerry 6 and BlackBerry 7 is the ability to change the number of rows of icons that appear on the home screen without needing to install a custom theme like previously required. In BlackBerry 6 you needed to go to the options menu from the home screen to set the number of rows, but on BlackBerry 7 the setting is no longer there.
With the implimentation of the touch screen on the devices RIM now allows users to simply drag the bar to the position they enjoy, whether no icons, one row or two rows, and let go and the setting saves. Take a look at the video above for a demonstration, and then be sure to set your let us know which you prefer!