AT&T Wireless and Cingular Wireless announced the first agreement to offer intercarrier Multimedia Messaging Service (MMS). Starting today, Cingular and AT&T Wireless customers can share multimedia messages with each other from their wireless phones.

As a result of this agreement, AT&T Wireless and Cingular customers can now send and receive messages that include text, photos, animated graphics, voice messages, music, and video clips with each other using the MMS feature of their phones. 

With the growing popularity of camera phones and MMS-capable devices, the companies believe that this move will mark the beginning of a much broader industry trend. Both companies cite cross-carrier text messaging as a major reason for the explosive growth in text messaging over the past two years, and they view cross-carrier MMS as an essential element for widespread adoption of this service as well.