Yahoo Messenger 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.
· Fast and reliable messaging
· Your contacts presence updates e.g
IM+ All-in-One Messenger - Chat in AIM/iChat, MSN/WLM, Yahoo!, ICQ, Jabber, Google Talk, MySpaceIM, Facebook and even Skype!
Post in Twitter on the go.
No cost per message!
Free version of IM+ remains free for you with all its further updates
Easy Smiley Pack for BBM - Hidden Messenger Smileys and Emoticons - The Easy Smiley Pack for BlackBerry® Messenger provides access to hidden smileys and emoticons right inside your
BlackBerry® Messenger
FriendChat - Chat with your Facebook friends from your BlackBerry device using FriendChat (formerly known as FaceChat).
FriendChat includes features that no other chat for FaceBook app has:
· BBM Integration, send your chat screen to any of your BBM contacts (requires BBM 6.0).
· Emoticons - send emoticons with your Facebook chats
A Chit Chat for Facebook (Blackberry) - Use Facebook Chat on your Blackberry with A* Chit Chat for Facebook (Blackberry).
Originally released for Windows now it's been brought to your Blackberry mobile by popular demand
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
Glider is an easy-to-use fully-fledged instanting messanging client for your cell phone. You can chat with your friends using any of the following protocols: Xmpp, Gmail, Facebook, MSN, AIM, Yahoo! and ICQ
Flirtomatic - Find millions of like-minded people and new friends with the Flirtomatic application. It's open to everyone over the age of 18 and helps you to find and flirt with millions of real people, if that's a new best friend, someone to have a chat to or your soul mate, or all of the above, it's your choice