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This paper investigates inexpensive means of communication through the use of instant messaging, text messaging over Hyper Text Transfer Protocol, and mobile email. It describes ThEm, a suite of applications consisting of an instant messenger, text messenger, and email application. All applications have been designed in such a way so as to make best use of the intermittent data connections on cell phone networks in South Africa. Since the convenience of mobility is fast becoming a reality, it is important to pay considerable attention to the design and ease of use of software designed for such devices.
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