This explains how they stop all the air from leaking out of the store without a Kensignton slot. I heard predictions of a usb lock, but I think there'll be demand for this pass through lock. Anyone seen these at retail?

Someone at that store's getting a talking to about this for two reasons.

1: product on the floor early.  Unless they were granted special permission (and they're the only store that had them out early)

2: they let someone take video in the store.  It's definately against policy to let anyone record on they're own device.