Merge pull request #174 from saghul/blink

Add Blink for Mobile to "who uses it"

WHO_USES_IT.md

@@ -37,3 +37,9 @@ This is a community supported, open source project for enabling developers to us
 
 [Free](https://assistance.free.fr/facetofree/) (french major ISP) use WebRTC technology to provide video support for our customers on iPhone & iPad.
 
+### [Blink](http://icanblink.com)
+
+<img src="https://blink.sipthor.net/blink-ipad.jpg" width="400"/>
+
+[Blink for Mobile](https://itunes.apple.com/us/app/blink-for-mobile/id1100356948?ls=1&mt=8) uses WebRTC technology to provide a rich audio and video
+experience on mobile devices.