Medical imaging with your phone?

Washington University wrote an article about a USB-based ultrasound imaging device for use with Microsoft Windows mobile-based smartphones built by computer engineers and computer scientists at the university. This low cost (< $2,000 so far) portable imaging method has many applications. For example, you can use them on the fly in ambulances and it could quickly diagnose wounded soldiers. Also "it could become the essential computer of the Developing World, where trained medical personnel are scarce, but most of the population, as much as 90 percent, have access to a cell phone tower."