I love to do lore checkups so I'm gonna do one:
One of the only. There were 122 (official Vault-Tec) Vaults in total, 17 of them so called 'Control Vaults' which means they were not part of the experimental Vaults of 'Project Safehouse' of the secret governmental organization which would emerge as the Enclave after the war (and is now reduced to cinders).
We don't know nothing yet about Vault 1, so many things are possible. I assume it is located in the west though, since we have a general lineup of Vault numbers getting higher from west to east.
Since I assume Fallout 4 will play out in the east, there could be another control Vault there (with a corresponding GECK) with another name. Any Vault could be a control Vault, we still have 15 to go (only Vault 3 and Vault 8 are control Vaults so far and there's no discernible pattern).
We know how a GECK works from Shady Sands and Vault City.
But I want to see more of it in a modern environment (and more GECKs in general, especially a mutated GECK) so yeah, I'm with you.