We all read about the Gainward 7800GS 512MB AGP card, which turned out to be a full 7800GT with 20 pipelines instead of the 16 which come standard with the GS cards. They sold out of the first batch, and since the G70 is not shipping any longer, the new revision will feature a G71 GPU, also known as 7900GT and will have a full 24 pipelines, as nVidia does not make any other kind of G71 at the moment. So more good news for AGP users.

Source: techPowerUp! - New revision of 7800GS 512MB AGP from Gainward
the Inquirer: Gainward prepares 7800 GS AGP card