Last I heard, AMD is supposedly to be supporting agp with their HD 2400 and HD 2600. nVidia on the other hand are dropping agp support, but does not restrict their partners to do so. It's all just rumors.
I was hoping maybe to buy a HD2400 agp for my older system, so it can be use as a media center. HD 2x00 were suppose to have HDMI connectors.