iJab is a web-based Jabber client. It is completly written in JavaScript, and uses Ajax technology, such as gwt and jsJac xmpp library.
iJab provides basic instant messenging. You just have to use a compatible Web Browser (see Wiki), no need to install anything in your computer, for using jibjab. It's comparable to JWChat, but all windows stays inside one web page and don't need to worry about two many poped-up windows. You could configure iJab by your favorite themes for iJab is wholly based on CSS design.
Feautres list
Instant Messages and 1:1 Chats
Jabber presence types with support for away messages
Support for transport/gateways to other IM services like ICQ, AIM, MSN, etc.
Server side storage of preferences
Emotions
...(It's just a 0.1.0 release and some other features would be implemented in later release version)