>Touchscreen first interfaces in 8 meant that all future Windows laptops will be loathe not to include that feature (something even Macs lack today).
And for good bloody reason. Touch on a conventional laptop is shit - though 'convertible' devices like the Lenovo Yoga are good for some use-cases (such as watching movies in bed, though that's something a tablet could do). .
Apple are taking the approach of having users buy a Macbook *and* an iPad. If you want touch input on a MacBook, say for Photoshop tool palettes - then you download an Adobe app and use both devices in tandem. Down the line, Apple are betting on developers like Adobe making iOS productivity apps - the iPad hardware and APIs won't be a limiting factor - and making it easy to shunt your workflow back and forth 'tween Tablet and Mac if necessary.
Credit to MS though on their Surface Book.