It looks like Apple is trying to find an alternative to touchscreens just because Steve Jobs once said they're bad. For me, touchscreens are perfectly useful on laptops, since directly tapping something is much quicker than moving my hand to the trackpad, locating the cursor, moving it around and finally clicking something.
It frustrates me that almost every Windows laptop with a nice screen is now touch. I assume you can turn it off, but you do pay more for a touch screen. This just reenforces my (outdated?) notion that it's a consumer, not professional device.