Talkonaut Talkonaut app it's free GoogleTalk / Jabber IM client with voice functions for your mobile device
Palringo Instant Messenger Palringo is a FREE Instant Messaging Chat program combining all your buddies from MSN, Google Talk, Yahoo, AIM, etc. It works on 500+ mobiles including the iPhone plus PC & Mac!
Octrotalk A Mobile Instant Messaging with voice and video integration
Spark Spark is your customizable Home screen with everything you want in one place