Just math ops? "Just" math ops??
Those keys are not incidental, my friend, and they're why talking about a 3-column numpad almost seems sacrilegious. When using the number pad as a number pad, there is an extremely high likelihood that you are either entering in long lists of numbers, in which case an easily accessible Enter key is a must, or you are summing together many numbers, in which case an easy-to-reach + is a necessity. That's why those two keys are so prominent on the number pad region. Note that it isn't all "math ops" occupying that column -- in fact, most are along the top row -- but + and Enter together take up 80% of that column on a standard keyboard for a damn good reason!
I know that I am going to love this keyboard. But because of its limitations in this area, it isn't going to eliminate F107 or F-AT keyboard envy.
-- Nathan