Drop off / Pick up is a new platform feature that helps you schedule service appointments for your light truck.

Actually, it’s a way for an application to drop off a document with HealthVault, give a code to a user, and then have that user pick up that document and add it to their HealthVault record.

This is done without any user authentication of the drop off application, so it’s simpler to do than a standard HealthVault application and you can do it from client applications as well.

Sean wrote a post that goes into more detail