People using Google Reader who rely heavily on keyword shortcuts aren't happy. A Google Groups thread has a few forum members baffled. The documented behavior follows:
I noticed that the "n" and "p" keys, used to scan down and up through the posts in list view, now causes the selected post to move to the top of the view's window whenever pressed. Prior to this, the displayed posts did not move, allowing movement through the displayed posts.
Many forum members echoed this sentiment. Roger of the Google Reader group says that the keyboard shortcuts will be replaced. I'm a bit curious myself as to why the behavior changed, especially since so many people are dependent on keyword shortcuts and are used to status quo, but I'm glad that the Google Reader team has opted to make the changes and listen to the feedback.
Forum discussion continues at Google Groups.