The WHQL 14.9 drivers are out.
So far no problems with my 2x R9 270x.
Linux drivers have also been released.
Strange thing problem reports seem to be limited to users of older AMD cards mostly.
Only problem i had with previous driver versions would be TDR error on some games using OpenGL,
DirectX games seem to run just hunky dory. Ill keep an eye on the OpenGL games though.