As i am very new to IoT my first look allowed me to think this way.
1)As it runs Linux applications i was thinking that in anyway we can Integrate Realsense 3D capabilty to it.Say the application is hosted in Cloud and accessing the Galileo Board from the WiFi as it has got WiFi Capability.The applications can be of Unity(as i have a little knowledge of it) and then use the Intel SDK to access the app stream it to Galileo Board and control objects with hand detection.
2)We can also simulate certain scenarios using a language say C++.The very important A* algo can be applied to the Galileo Board and can controls robots to take the path finding algo to full effect.
3)As i am fan of Creative Coding we can use Processing Language to generate a very funny pattern of say Digitized art.
As this Technology Grows it will allow others to explore and experiment and i am overjoyed with it so this is my little idea that i had in my mind and would like to implement.