Proof: Skydrive on tablet MicroSD /cc @LocalJoost 

A blog post will be forthcoming on http://blog.peshir.nl/ (probably later today) about exactly how to get this working, but here is a screenshot that proves it already.

Thank you, stefan stranger for the suggestion that made this possible!

And of course the solution blog post will also go onto http://superuser.com/questions/469410/how-could-i-let-skydrive-desktop-sync-to-microsd-in-windows-8-tablet