Sim-IM is a multiple protocol instant messenger with support for Jabber/XMPP, Google Talk, ICQ and AIM (Oscar), Yahoo! Messenger and Microsoft Messenger (MSN).

It features:

* Receiving and sending SMS;
* Server-side contact list;
* Receiving and the sending messages in RTF-format;
* Phone directory support;
* File transfers;
* Chat;

And many more. See website below for details.