I don't own any iOS devices, and only one mac that runs Lion. Obviously I have no use for the sync abilities, which is fine. Now, I was under the impression that I could at least use the cloud as a backup for my keynote documents. However I couldn't figure out how to do it. When I log into iCloud.com, it seems to expect that I buy keynote for iOS first... Is there any way I can use my 5GB cloud storage, e.g. in a way similar to dropbox? Or does it only really work if I have at least one iOS device? Thanks for any input.