Windows 8 PC Settings offers a way to sync desktop personalization themes, taskbar, wallpaper, etc. but it does not appear to offer a seamless way to sync tiles/shortcuts/apps between machines.
This is a real drag considering I use multiple machines and I'd like to have a consistent start screen on all machines.
I suppose I could use some run-of-the-mill cloud-based file system sync app to sync the specific folders that contain the start screen data, but that may contain unintended consequences with app shortcuts for apps that aren't install on all systems.
Anyhow, I'm open to any ideas, solutions or killer apps. :)