WhatsApp Messenger: Android + iPhone + Nokia + BlackBerry
I just downloaded WhatsApp Messenger on my Android.
It is a Smartphone Messenger which replaces SMS. This app even lets me send pictures, video and other multi-media!
WhatsApp Messenger is available for Android, iPhone, Nokia and BlackBerry and there is no PIN or username to remember - it works just like SMS and uses your internet data plan.
Get it now from http://www.whatsapp.com/download/
and say good-bye to SMS.