Actually we're launching cancer screening this summer where I work. It's really only for a likelyhood for developing hereditary linked cancer, it's not as groundbreaking as the article puts it. The only reason it wasn't able to be launched sooner is due to existing patents. Screwy, but that's how things are.
The real groundbreaking situation will be sequencing of cancerous tumors to help improve treatment. Due to the nature of current technologies, that's still not very cost effective or rapid enough.