This WiFi click board carries the successor of the highly popular CC3000 module from Texas Instruments. Its claim to fame was that it simplified WiFi for embedded developers by integrating multiple Internet Protocols and a Wifi driver with a simple API.
CC3100 inherits all these benefits, and on top of that, adds an updated protocol stack (support for 802.11n) and cutting edge security features (TSL encryption, hardware crypto-engine and more).
To quote Hackaday:
Especially when you have it on a click board.