For entering numbers conveniently? I'm not sure why, if you're going to take up the area for a full keyboard with all the keys (numpad, ins/del/pgup/pgdn, func

For entering numbers conveniently? I'm not sure why, if you're going to take up the area for a full keyboard with all the keys (numpad, ins/del/pgup/pgdn, function keys), you would come up with yet another non-standard layout, instead of the time-tested IBM M design.