CM client can cover all the messaging technologies including IM, SMS, MMS, E-mail, in one single user interface. Also, integrated contacts application makes more convenient user experience.
Integrated SMS/MMS Management Solution : to make resource efficient system
SQLite based DB engine : better search/store algorithm for contact list and message box
BREW based application : considerably short development period
Can integrate IM/Email client.
Unified message system for sending/receiving/saving SMS/MMS without distinction.
UI that minimizes user interactions.
Message saving mechanism which focuses on contacts.
Favorites page for searching contacts with frequent conversations.
Doesn't have to memorize the phone number of one who has had a conversation with.