This change really sucks for visual thinkers who see things in 2 or 3 dimensions! The old Notebook icon layout allowed me to find things by their location and not necessarily by the title. It gave me a quick visual overview of all my notebooks in just a few scrolls. Now, I am forced to think of the title first in order to find it. I then have to scroll endlessly (which is terribly distracting when you have something on your mind that you want to get down). Most times I have to scroll back up since I missed what I was looking for. The old Notebook icon was more efficient since it's layout was not only up and down but also left to right. This shortens considerably the time it takes to find a Notebook. Now I have to rethink the titles of some notebooks in order to better organize some frequently used Notebooks to the TOP (the TOP now being significantly less!). I had to get use to this change on the iPad (which I hated and still do) but my use of the iPad is different since I use it to find notes more than compose notes, therefore, the distraction of endless scrolling was less of an issue. I use Evernote on my Mac to compose notes where I am thinking, researching and problem solving. The scrolling on the Mac version becomes a detriment to fluid thinking. This change has really affected how I "see" my Notebooks and most likely it will affect my productivity immensely. Like White said above, let your users choose!!!