This gadget can only be used by its owner.

When this gadget’s owner makes a movement, e may use this gadget to make a bonus land or sea movement.
The bonus movement shall follow all normal land and sea movement rules, except:

• The bonus movement will not require the use of a ticket.
• The gadget’s owner may move across the Iron Curtain in this manner without restriction.

When this gadget is used, the Mastermind rolls 1DICE3 in the GNDT.
On a result of 1 or 3, the agent’s “Last Known Location” field is updated to reflect es end location (if there is no “Last Known Location” field in the GNDT, post a message to the main Blognomic page stating the agent’s name and end location).
On a result of 2, the agent’s movement remains secret.

See here for my inspiration. I made it only apply to land or sea movement because using this thing in an airplane wouldn’t make sense, would it? :P I’ll be proposing something that includes a Last Known Location entry in the GNDT later today (assuming no one else beats me to it), though I put in provisions in case that proposal doesn’t pass.