The 80-million-strong subscriber base for the Kik instant messaging service has surpassed BlackBerry's BBM, which is ironic given that BlackBerry sued the Canadian company for patent infringement and kicked Kik off the BlackBerry platform. Next for the small company -- earning a profit. Kik users can purchase emoticons, which can be added to messages, a "first step to aid in revenue generation for the company," Christine Persaud writes.

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