I used the N-6205 wireless card along with a libGDX Java application to allow the Galileo to use a PC or android device like a wireless LCD screen. The interface is provided by a python class, WifiScreen, and roughly implements the same API as the Arduino TFTLibrary. I plan to release the Java source code to my GitHub (bunneydude/WifiScreen · GitHub) but until then the python class and executables are available (currently no Mac support).
More information and a link to a demo video running four screens (phone, tablet, laptop, and desktop) can be found on my blog: Galileo with libGDX for wireless LCD screens | The Electronics Cache.