msg - send and receive unlimited short messages for free.
· Saves You Money. Instead of texting, just msg your family and friends - it's unlimited and it's FREE!
· Message Threads: Entire conversation is shown when reading and replying to a message.
· Group Messaging: Send a message to a group of people easily
Jabiru is free jabber client for Android phones.
What's New in This Release:
· fix clearing of conversations with autoconnect settings
· chat time settings
· contact groups deactive option
· chat enter key settings
· tip and tricks
What's New in 2.2
AndroidChat is a location aware chat client for the Android platform.
More technically, the project consists of modifications to the inspircd irc daemon to support location-awareness services, and a client for Google's Android platform which supports location based channel matching
Besides being a chat client XtreMePP is designed for integration with other applications like LedEffects. Incoming messages are broadcasted so that other apps can react on incoming messages. XtreMePP is an open client and of course is open source