Comment by onion2k

If that's the case then the interface will remain a compromise that has to work for both point and touch, and ends up being suboptimal for both. Touch input necessitates bigger hit targets, lots of additional negative space around important buttons rather than groups, and a much lower information density on anything that has a click/touch handler like a list in order to avoid accidental presses. Apps need to be written with a touch UI in mind to work well.