Can you explain more why? My monitor is 16:9, my iPad home button suggests is should be held 3:4, and at best is 4:3, which is not as well suited for side scrolling as modern monitors, which are wider than they are tall.
It's as big of an issue on my OSX touchpad devices, as I can scroll sideways with the same gesture I use to scroll vertically. But on any device where my primary HCI device is a mouse, it requires finding the horizontal scrollbar and click-dragging it. It's also not typically what people expect out of a website outside of the touch realm, which breaks a pretty primary rule in UI design (don't present the user with something they don't expect).
