While putting a vote in for the Mobile Media Kit on an SD Card for the Ashoka Changemakers competition, I also saw these projects noted on that page which might prove as avenues for applying mobile to your efforts:

Serval Project: Serval lets mobile phones work without infrastructure, such as during disasters or in times of internal crisis, by using your existing phone number. The group created open-source software that uses the WiFi radio in cell phones to create a P2P telephony and data service that behaves just like a regular cellular network, including using existing phone numbers.
 
CGNet Swara: CGNet Swara is a voice-based portal, accessible by mobile phone, that allows anyone to report and listen to stories of local interest. Reported stories are moderated by trained journalists and made available for playback online as well as over the phone. Check out our case study on CGNet Swara. 
 
Global Participatory Journalism with FrontlineSMS: This project uses FrontlineSMS software to aggregate messages that are sent to a newsroom or other hub. Hosts and journalists will be able to sort through, curate, and verify primary sources, and can send selections of this content to mobile devices.

Mobile Journalist on an SD Card: Most citizen journalists and reporters already use mobiles phones, but the sheer number of tools available makes it difficult to know the best way to use them. Mobile Journalist on an SD Card tests and makes accessible the best of the tools for journalists and citizen journalists, downloadable and on SD cards ready to plug into any phone. Tools will span from basic feature phone to smartphones, and will be selected to work in varying situations, including low-resource reporting environments where Internet access is unreliable. 

The text for these projects is taken verbatium from the Mobile Medita Kit’s article on being one of the 11 finalists for the competition.