AirWayChat AirWayChat - If you have a Java MIDP 2.0 enabled mobile phone with an activated GPRS, EDGE, UMTS or other mobile internet service, you can participate in the chat directly from your mobile phone!
is absolutely free at the moment (You will only be billed only for the network traffic generated by the chat application
Friendplay IM Friendplay IM is a mobile instant messenger and communication service that allows friends to connect, share experiences and enhance their online communities together. Chat with anyone, anywhere and in any language inside hundreds of thousands of Friendplay chat rooms on your mobile device
Flirtomatic Flirtomatic Find millions of like minded people and new friends with the Flirtomatic mobile 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
Pinch Group Messenger Use Pinch chat messenger to create an exclusive chat room for all your friends free of cost
Valhalla Chat Valhalla Chat is an Instant Messenger for bluetooth devices.
What this means;
An instant messenger in general terms, offers (at least) typed text communication between users, just like: AIM, Microsoft messenger, Yahoo! messenger, Jabber, Skype and so on.
However, there's a big difference with Valhalla Chat and all these messaging systems