I have noticed that the latest patch has had the big time pvp warlocks change their talent spec.  It was about half and half destro/affliction.  Now, it is heavily in favor of affliction. I have changed to an affliction pvp spec to try it out.  It has been quite effective so far.  I have only spent a few hours in BGs with this so the testing continues for me.  What I wanted to ask was how it was going for the other warlocks.  Have you tried affliction pvp since the patch? 

fwiw, I have also heard that the new gear is weighted toward affliction for raiding but initial experiments with this in heroics have not gone as well as it has for pvp affliction.