One of the key features of BlackBerrry phones which other smartphones lack is the ability to ping other BlackBerry phones. A BlackBerry ping is but one way to get another BlackBerry owner’s attention, this allows two BlackBerry owners to communicate instantly like instant messenger on your computer. WhatsApp is a cross platform application that makes this exclusive BlackBerrry feature available on other smartphones like Android, iPhone, Symbian S60V3, S60V5, Symbian ^3 and Symbian Anna! And just of recent, WhatsApp developers released a beta version for Nokia S40 phones. With WhatsApp, you can send unlimited pings to friends you have using WhatsApp Messenger. It uses your internet data plan, the data transfer is almost negligible and it’s more or less sending unlimited free text messages.
Because WhatsApp Messenger uses the same internet data plan that you use for email and web browsing, there is no cost to send messages and stay in touch with your friends and family. Apart from basic messaging, iPhone, Android, Nokia and BlackBerry WhatsApp Messenger users
can send each other unlimited images, video and audio media messages. Unlike BlackBerry messenger, you can ping other users using different mobile devices and your PIN is simply your phone number.