Reduced physician mobility---another unintended consequence of the electronic medical record?

In his address at SHM 2008 Bob Wachter wondered if hospital implementation of EMRs will be one more factor driving traditional practitioners away from hospitals. I wonder if it will be a deterrent to doctors changing jobs. If you change jobs nowadays chances are you’ll move from paper to EMR, EMR to paper, or from one EMR product to another one you’re unfamiliar with. Something to think about of you’re recruiting or looking for another place to practice.