WhatsApp, one of the popular messenger on smartphones on different Mobile platforms like android, iPhone, BlackBerry and Windows Phone 7.5 is now available for Windows Phone 8 too.
Looks like the WhatsApp is now optimized well for Windows Phone 8 experience too.
WhatsApp lets you to send and receive message, pictures, audio notes and video messages between another WhatsApp users.
Know more about WhatsApp for Windows Phone 8 at Windows Phone Store