Agile Messenger

"Agile Messenger is the most feature rich and versatile Instant Messenger for mobile phones on the market today. Agile Messenger is used daily by over 400,000 users and has been perfected based on feature requests and feedback from tens of thousands of users. No other mobile Instant Messenger is as mature and reliable as Agile Messenger.

Supported platforms include:

• Symbian Series 60
• Symbian UIQ
• Microsoft Smartphone
• Microsoft Pocket PC
• Palm OS 3.5+
• J2ME
• Brew
• WAP

Instant Messaging services supported:

• MSN®
• AOL®
• Yahoo!®
• ICQ®
• QQ®
• Wireless Village™"

You can get it from Agile Mobile