this one never existed too
beside im quite sure my 2x4850x2 are hell powerfull enough for any tessalation , so this is an in company screw 4800 ppl and force them to buy 5800 series or actually exist any techical difference that make 1 tessalation incompatible with the other?? even if it exist, wth?? opengl have extension you know, so you can have tesslation and legacy tessalation in that case too.
in fact i remember to see a tessalation extension in fglrx opengl, have to check it out
even if this tessalation give less details (i dont think thats true based on several demos outhere but well i can be wrong), for ppl like me , that spend several houndred $$$ we want to see tessalation lol, even if got a bit less detail, on the windows side well i dont care