I'm glad they've finally reversed a lot of there DRM policies, but for a lot of people its far too little too late. Now people who were happy with the DRM changes and the push towards digital gaming are annoyed and the people who wanted it changed now want the kinect removed (which I doubt will happen). I'm not that concerned about the kinect, but if they do make it optional I think that will be a huge step in their favour as it should reduce the price a lot too.
As for Sony changing their policies, I'm not sure they will, for one thing not as many people know about it (I would have missed it if it weren't for the fact I was looking through everything for writing my article) and they seem to be a bit better than Xbox's.
Only time will tell though I guess, I'll probably stick to what I've done for every gaming console and wait quite a while after its released before getting one, heck despite being pretty much an Xbox360 gamer now it was only about 4 years ago that I got one (which would've been about 4 years since its release)