because: no one buy a 1300€ fireGL "AMD FirePro V8800 2GB" card for the opensource driver!
really no one!
the best result for the opensource driver is a X1950 or a X850!
the second best is a hd4350-hd4890
the worst to fehl a opensource driver is a hd5000card
and really no one buy a FirePro V8800 for the opensource driver!
thats only because linux user ar not Dump!
linux userx mybe buy a linux edition or a shirt with an amd-linux logo or a feature ticket means if 1000 people buy this ticket amd pay devs to get this feature for linux.