Nimbuzz Messenger is a free instant messenger (IM) and it is available on Windows, MAC, iOS, Android, Blackberry, Symbian and Java.
Free video PC to PC call and PC to iPhone call (over 3G, 4G and WiFi)
Free HD voice calls for free with all your Nimbuzz Messenger contacts
Replace SMS with unlimited free messages
Connect with multiple IM accounts and have them in one list (Facebook, Yahoo Messenger, MSN/Live Messenger, Gtalk)
chat rooms and share your location for easy face-to-face meetups
group conversations with your buddies
cheap international calls to mobile/landline
SIP VOIP accounts.
Download Nimbuzz Messenger