Health care iPod?

The Boston Globe reports that the iPod accessory business has reached $300 million as people place their iPods at the center of home and car uses. Maybe this is already happening, but it seems that iPods could be used in the health care field, too. My iPod has a 20GB hard drive --enough to store a personal health record and even plenty of MRIs and CTs. The color screen is small but big enough to read key data. And why not have people record advance directives in their own words and store them on the iPod? (I admit it might make for a depressing playlist unless mixed in with a few upbeat tunes.)A big problem with existing personal health records is that health care workers don't know how to access them. But most people know how to use the click wheel.---PS -- A quick search shows a lot of radiologists and other docs using iPods but not much on the consumer side.