When Stargage: Atlantis was launched, my wife and I started watching it, but we got tired of it fairly quickly and went back to just watching SG-1. From what we saw of Stargate: SG-1 in season 8, it seemed that the SGC was out of contact with the personnel who had moved to Atlantis. So we were rather surprised when, in the season finale, the members of SG-1 referred to the gate ship that they commandeered as a "puddle jumper." So far as we knew, that was terminology coined by the Atlantis people after they had lost contact with Earth.
So, was this phrasing a continuity error? Or was there a in-continuity reason for the SGC to know of the name that had been coined for the gate ship?