I am surprised that no one has brought up how a blackberry works. It sounds so ominous that an aide of Clinton's destroyed several blackberrys with a hammer, when in fact this is exactly what should have been done when she gained a new device. A blackberry doesn't actually store any email, it is a conduit back to the email server and requests emails for viewing when the user authorizes themselves against the server. All records remain on the server and none on the device.
The destruction of the device is actually the preferred security treatment to ensure that the disposed of device can't be hacked for the security credentials that would give someone access to the server.
Everyone, lets please move on from this topic!!