It sucks that iCloud Drive is only available for Windows 7 & 8, but not Mavericks and Mountain Lion. Where's Apple's priorities to its users? I note that iCloud was subsequently added to Lion at 10.7.4, so maybe there's hope of iCloud Drive being added to Mavericks and Mountain Lion later on? Optimism? If Dropbox, Google Drive, Microsoft's OneDrive can provide cross-platform Cloud drives, surely, surely Apple can do it for is earlier OSX versions.