From the article:

AIM for Windows Mobile brings all of the best features of AIM on your PC to your Windows Mobile smartphone! AIM for Windows Mobile lets you communicate whenever you want, wherever you are, in whatever way suits you best - IM or text. Update your AIM status and information when you're on the go. Change your conversation style, manage your Buddy List, and much more. AIM Windows Mobile Smartphone has many of the same key features and a familiar look-and-feel of the desktop AIM client.

Supported Devices: AIM for Windows Mobile supports devices with the Windows Mobile 5 and Windows Mobile 6 operating systems. Some examples are:

* T-Mobile Wing
* Sprint Mogul and HTC Touch
* AT&T Blackjack II, Tilt
* Sprint Samsung ACE
* Motorola Q
* Verizon Wireless 6800
* Most Palm Treo's