For all mac users, I just found Cloud Commander Skydrive Edition in de Mac App store.
Just login with your O365 account and it works.
It's free, download here.
https://itunes.apple.com/nl/app/cloud-commander-skydrive-edition/id724510907
I am in no way connected to this app, just found it and thought I'd share it here since Microsoft is taking their time (or ignoring mac users)