nebohodimo IM is a Jabber client for Windows Mobile-based devices. It is optimized for working over mobile connections (GPRS) and easy to use.
It requires Microsoft .net Compact Framework.

Features

• Text messages
• Contact groups
• Adding, removing and authorizing users
• Avatars
• Google Talk support (with checking for new mail)
• Transports - can be used for, e.g., ICQ via Jabber
• Automatic updates
• Service Discovery
• Multi-user conferences (beta)
• Changing password and registering new account
• File sending and receiving
• Message notification settings - sound, vibration, etc. (On Pocket PC)
• Jabber Commands for controlling transports and other actions

Supported XEPs

Plans

• Better conference support - user list, creation, etc.
• Enhanced chat window with rich formatting and smileys

Anything else?

• Report a bug∞
• Suggest a feature∞
• Discuss at Mobilitysite∞
• Get the source code∞