BeejiveIM (BlackBerry) is the most reliable and user-friendly mobile IM application on the market for BlackBerry devices, featuring desktop-like instant messaging and always-on efficient networking.
Works with AIM/iChat/MobileMe, MSN/Windows Live, Yahoo!, Facebook Chat, MySpace, GoogleTalk, ICQ, & Jabber
ChatON for BlackBerry is a multi-platform mobile communication service that allows you to keep in touch with your buddies from all over the world. You can chat with more than two friends at a time using group chat, and also broadcast a message to several buddies. Express yourself by sending pictures, videos, animated messages, audio, contacts, calendar, and location
Google Talk for BlackBerry - Google Talk for BlackBerry smartphones allows you to chat in virtual real time with your instant messaging IM contacts when and where you want to not just when you are in front of your computer. It has many of the same features you already use with Google Talk on your desktop
Fixmo Web Messenger provides an entirely new experience by allowing you to access your devices BBM BlackBerry® Messenger experience directly from any web browser. To use Fixmo Web Messenger, download and install the Fixmo Web Messenger mobile application on your BlackBerry®
Nimbuzz - Free chat (for BlackBerry OS 6 & 7) is free instant messaging with friends on Nimbuzz.You can also import all popular IM communities and social networks so you can chat with friends from Facebook, MSN messenger, Yahoo Messenger, Gtalk, ICQ, AIM, MySpace, Hyves.FREE CHAT ? Use messaging as free SMS to save money on texting
imo instant messenger for BlackBerry - imo is a multiprotocol instant messenger which allows you to easily keep in touch with all your friends. It supports Facebook Chat, Google Talk, Skype, Windows Live Messenger (MSN), ICQ/AIM, Yahoo Messenger, Jabber, Myspace, Vkontakte.ru, Hyves, and Steam
Kik Messenger (BlackBerry) is the totally free, crazy-fast cross-platform messenger application that connects you to your friends in real-time. Use Kik to chat, share pictures privately, plan outings with groups, and stay connected to the people who matter most to you
Nimbuzz for Blackberry gives you free instant messaging and puts all your friends in one place!
For the first time on BlackBerry, you can chat with your friends on Skype, Facebook & MySpace using Nimbuzz for BlackBerry or IM your friends across all your other social networks
