, Harlequin wrote

Would Office 2013 install the desktop client/service? I know I put my OneNote files on SkyDrive, so OneNote 2013 talks directly to the files in the cloud...

Office 2013 can install SkyDrive pro (which uses sharepoint as a backing store).

For myself I always install the desktop client, because I want my files synced for offline use. You don't have to sync all the folders either, that option was added late last year.