The Tues before our SHM I had a 10 minute tele chat w/Fred. He explained that the initial shipment includes content as specified by the customer, then the service contract includes content changes at a time interval to meet each customers needs. The cycle is 30/60/90 and a couple as longs as 180 days apart.

At the repair centers and EDIG's SD location, a single unit is loaded with new content, then shipped to the customer. It is then placed in a docking station or some other such name, which is a rack that holds many devices, say up to 100 I think but don't quote me, and they are daisy chained (wired in a loop) in this rack automatically and the content is downloaded from the master to the slaves.

It's more involved than this, but it basically answers your question. This is why the revs are exponential, as the more units in service the higher the margins due to the service contract. The sales dollars have babies so to speak.