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Genetic testing? We've got an app for that - US scientists have developed a device dubbed Gene-Z for point-of-care genetic testing using a smartphone interface that has realistic commercial potential. The device, made by Robert Stedtfeld at Michigan State University and colleagues, is cheap, with an estimated manufacture cost of less than $350. It's small, about the size of a tablet computer, and weighs less than a bag of sugar. And, you can operate it via an app on a smartphone. Reference: R D Stedtfeld et al, Lab Chip, 2012, DOI: 10.1039/c2lc21226a