August 03, 2012, 5:36 PM — Here are two quick ways you can navigate Launchpad using your keyboard in OS X Mountain Lion.
1. Use the arrow keys to move a single space to the right, left, up or down.
2. Hold the Command key to move from one page of folders or icons to another.
Once you get used to it, you can really move fast around Launchpad via your keyboard.
For more, see the original article at the link below.
Improved navigation on Launchpad | Apps Rumors
Article source: http://www.itworld.com/software/288559/launchpad-keyboard-navigation-os-x-mountain-lion. Creative Commons (CC)