Useful Links

you can download Windows 10 IoT Core Insider Preview, with support for Raspberry Pi 2. Windows 10 IoT Core is a new Windows 10 edition for low-cost, small-footprint devices that is available free for Makers. Learn more at Windows on Devices.

http://ms-iot.github.io/content/en-US/GetStarted.htm

To get the Ideas that what you can build using Galileo goto below Link:

https://www.hackster.io/intel-galileo


Intel Galileo Experiment Guide :
https://learn.sparkfun.com/tutorials/galileo-experiment-guide


Download Software Packages for Intel Galileo
https://downloadcenter.intel.com/download/23171/Intel-Galileo-software-package


Intel Galileo using Arduino IDE and Various Projects and Features
http://blog.arduino.cc/category/arduino/arduinocertified/galileo/