PKSArena BluChat - bluetooth based chat application. Enjoy unlimited chats with other users of PKSArena BluChat. Using this application, users can send unlimited messages between themselves (over bluetooth) without incurring any data transfer or sms charges. The source code for PKSArena BluChat is completely open source.
Palringo Instant Messenger Palringo is a free IM client with text, image and voice support in both private and group chat. With thousands of groups on every subject, come and join the conversation with Palringo
faceMessenger Is an application for Android smartphone owners with the help of which you can manage several profiles in the social network Facebook at the same time as well as publish updates, news and media content. You can easily reply messages, leave comments from several pages on-the-go
biNu SMS Free SMS, unlimited Email, Chat messages. Better than Nimbuzz, ebuddy, Twitter, Facebook, Opera mini