Hyves- the most popular social network in the Netherlands has just released their BlackBerry client app. The great thing about Hyves is that you can keep in touch with your friends, colleagues, roommates or family. It is an easy way to keep in touch with the people you don't talk to every day
Windows Live Messenger- Stay in the conversation, even as you’re heading out the door. Windows Live Messenger for BlackBerry smartphones places the desktop IM experience – from sending text messages to sharing photos – onto your BlackBerry smartphone
Bluehoo is a mobile app that helps you find old friends and make new ones in your current vicinity.
Bluehoo uses Bluetooth to discover "hoos" around you right here, right now, and enables you to view those people’s profiles and start conversations
Ramble Instant Messenger is an application designed to let users access the AOL Instant Messenger™ network via a Research in Motion BlackBerry® device. The application was designed as a technology demonstration by SRA International, Inc. Wireless Integrations Services group. The application is free for use, but not open source
JIMM Mobile Messaging - Jimm is an ICQ™ clone for mobile devices with J2ME™ (MIDP) technology
(Java 2 Micro Edition / Mobile Information Device Platform)
* It's working on a lot of devices which have J2ME™ support
iSkootSymbian OS, Pocket PC, Palm, Series 60, UIQ, BlackBerry, SmartphoneVersion: beta Upload date: 1 Dec 08 Tags: Internet & Communications
Freeware
iSkoot for Skype delivers the rich features of Skype to your mobile phone! You can make & receive Skype calls, chat, and use SkypeOut to call regular numbers anywhere in the world. With our enhanced feature set, you can easily place SkypeOut calls to anyone in your general address book, and enjoy Skype chat features like emoticons and multi-party chat
