AirPlay lets iPhone. iPad, iPod touch users stream the Video to multiple devices. Apple hasn’t enabled AirPlay for all apps, but a hack enables AirPlay in All apps, including Apple’s Safari.
You need to be on an Jailbroken Device before getting this hack.
How to Enable AirPlay Video Streaming in All Apps
You can get started by adding the follosing source to Cydia: “http://cydia.zone-mr.net”
After adding the source, search for “AirVideo Enabler“.