ThumbXP Messenger is a free mobile instant messenger that allows you to exchange instant messages using the most popular IM applications from MSN, Yahoo! and AOL on your cell phone. With MT Messenger, you can send and receive instant messages anytime, anywhere, from your cell phone to a PC or another cell phone. You can also view your contact/Buddy list to see who is online, to set away messages, to have multiple conversations at the same time and to get notified of new messages.