This is a joke... I'm not sure why but every time I'm seeing the word ninja/guru in a title I'm 99% convinced that what I'll be reading is the most basic stuff.<p>PS: (not connect with the product) for Mac: <a href="http://www.cheatsheetapp.com/CheatSheet/" rel="nofollow">http://www.cheatsheetapp.com/CheatSheet/</a>