ChatOn is available in 120 countries and 62 different languages. The is similar to Apple's upcoming iMessage and RIM's BlackBerry Messaging (BBM). Unlike Apple's and RIM's services, however, ChatOn is designed to eventually work with all mobile phones and even computers (through a web client).

ChatOn currently works with Android, Samsung's mobile OS Bada, and some Samsung feature phones. However, Samsung says it has iOS and BlackBerry app plans in the wings, as well as a web app. Samsung hasn't weighed in on whether it will develop an app for Windows Phone 7.

The smartphone version of ChatOn supports both one-on-one and group chatting. You can also share photos and videos, as well as contacts, locations, and calendar appointments. You can create animated messages that contain drawings, images, or background music, and there's an "interaction rank" that tells you how often you talk to your buddies.

The feature phone version of the app has scaled-back features, though it does support image, contact, and calendar sharing.

Samsung says the ChatOn Android app works best with phones that have at least 480 by 800 pixel resolution and are running Android 2.2 (Froyo) or higher.