The internet's favorite personalized magazine comes to BB
Talk to your Facebook friends
Free software to remotely manage smartphones
Communicate with the world, BlackBerry style
Social & Communication for BlackBerry
Call and text free over 3G and Wifi
The alternative to WhatsApp and Line: free messages, personal wall and VoIP, all from Samsung
Chat with Telegram on BlackBerry (with an unofficial app)
Free video calling and messaging app for BlackBerry
Another messaging service? Yahoo?
A free program for Blackberry, by OpenWhatsapp.
WhatsApp style instant messenger client