The folks at RDTN have organized a Kickstarter project to fund the development and deployment of radiation detectors in Japan. The project uses an iPhone hacked to work with a variety of radiation detectors. The radiation units (shown here) will be sent into the field and used to collect data on radiation contamination in the Tsunami-ravaged country.
Since the detectors use an iPhone, they are easy for the average person with minimal technical knowledge to operate. Japanese residents who accept these counters are required to take readings eight to ten times a day and report their data back to RDTN's website. The readings are compiled by RDTN and made accessible to non-profit organizations, governments and scientists.