Psi is yet another GPL Jabber client. It is written in the QT Toolkit, and as a result it is avialable for Linux, Windows and MacOSX.
Psi is currently at version 0.8.5 and has the following features (taken from the psi homepage):
- Message (ICQ-style) and Chat (AIM-style) modes
- Drag and drop to send to multiple contacts
- Full Unicode support
- SSL server connections
- Saving contact list locally, and server sync on login
- Icon Themes
- Agent registration and searching
- Retrieving and updating User Info
- Sound support for incoming events
- Auto-away after a configurable amount of time
- Tray/Dock icon for KDE/GNOME/Windows environments
- Language plugins
However, Psi is more interesting because of the features it doesn't include. At present, Psi does not support Groupchat, Conferencing, and File Transfers are all not supported, as the main focus of psi is stability. Psi is less fully featured than other clients, but its solidity makes it usefull for people who just want to chat.