I can use any layout with arrows, of course, and the FC660 is almost a sixty percent one, which is good, however, I have found that having the arrows under the home row is much better just by using the space bar as an Fn key, which rocks, no unnecessary movements there. I sold my FC660 a couple of years ago, I really have no need for arrows now. By the way, I hated the need for a second 2.25u shift key, I was always whining to GB leaders for one, it was so frustrating and embarrassing.