Agile Mobile is the most reliable and user-friendly mobile IM application on the market for Window Mobile and helds, featuring desktop-like instant messaging and always-on efficient networking.
Works with AIM®/iChat®/MobileMe®, MSN®/Windows Live®, Yahoo!®, MySpace, GoogleTalk®, SameTime®, ICQ®, & Jabber.
If you know the exact version of your device OS you can use
the expert download page
You can also download and install via your computer.