Thanks to the Catalyst 11.7 drivers, some driver entries were spotted for the soon-to-be released Southern Islands generation of AMD GPUs. The codenames behind the Southern Island series are "Lombok", "Thames", "Tahiti" and "New Zealand". At the moment nothing is concrete, but it looks as though "New Zealand" will be the creme of the crop being a dual-GPU based card based off of two "Tahiti" GPUs.
"Thames" is looking to be a low-cost mobile chip, but it could also be a performance chip - there's no guarantee at the moment until more information surfaces. But, the codenames themselves should be enough to get some of that fanboy fighting to surface again.