Well, with this news from Activision, I am sure going to pick up Guitar Hero IV. They also have very nice track selections.
Well your comment that Activision is pro-consumer is probably about as lame to me as my comment that Guitar Hero IV can't compete to you so let say we disagree on that point. I am not here to pick fight with you.
However, I have lost much faith in Activision and Guitar Hero. You can check my tag and see that I didn't touch GH III at all after I got Rock Band. I prefer Rock Band game play, presentation, DLC and set-list over GHIII.
Nowhere am I saying they care for the consumer and look out for them. My point was they are saving the consumer a good $200 plus and making themselves millions more by making the Rock Band instruments compatible. It's a business move that benefits both ends.