I found this to be an interesting way to build the home screen.
http://www.cultofmac.com/322262/scientific-apple-watch-app-layout/
http://www.cultofmac.com/322262/scientific-apple-watch-app-layout/
The hour you save using the watch will be used maintaining this. And then some. Cute though.
Am I the only one who doesn't have trouble tapping the icons, even without zooming in?