I like the ability to synch Metro settings between machines.
Shame they're not making that possibility available to non-Metro apps.
As of right now there is no standardized way native Windows applications save or manage settings, trying to introduce this technology into the older platform probably isn't possible.
There clearly is a standardized way for Metro apps to do so, if the settings can be synched.
Opening this method up to non-Metro apps shouldn't be _that_ hard.