Startup developing machine to mimic "cancer-sniffing dogs"

Here's an interesting Bloomberg News item on Metabolomx, a 12-person venture based in Mountain View, CA that's designing a PC-sized device to detect cancer by smell. "The problem with cancer-detecting dogs is that, well, they're dogs. Hospitals haven't embraced the idea of a diagnostic tool that poops, barks and requires feeding." Enter the cancer-sniffing machines.