WhatsApp Messenger is a smartphone messaging app which allows you to exchange messages with your friends and contacts without having to pay for SMS. WhatsAppmessage each other! To send and receive messages, WhatsApp utilizes your existing smartphone internet data plan: 3G/EDGE (or Wi-Fi when available)
In addition to messaging, Nokia Symbian, iPhone, Android and BlackBerry WhatsApp Messenger users can send each other unlimited images, video. WhatsApp Messenger is cross platform and available for iPhone, BlackBerry, Android and Nokia. Minor update probably some UI enhancement and bug fix.