ChatOn
It comes preloaded in Samsung mobile phones. It provides chat as face to face and has auto translator to translate language. Translator translates speech message.
 

 

  eBuddy
It is web or mobile based instant messaging service launched in 2003. The eBuddy chat supports Windows Live Messenger, Yahoo! Messenger, AIM, Hyves, ICQ, Google Talk, MySpace Instant Messenger and Facebook Chat using one interface.
 

 

  Facebook Messenger
With this application, facebook users can send messages directly to friends on their mobile phones, so user can stay in touch no matter where they go.
 

 

  Fring
It is mobile application which provides
  • Free group video
  • Video chat
  • Live texting
  • Fring call (call within Fring)
  • FringOut calls (fring to any phone number with cheap price)