I find the iCloud product to be confusing. Ideally, I'd like to be able to have a read only copy of a document pushed from one user to another user both on a mac. This would seem to be really straightforward to set up on a mac but it doesn't seem to be. Also thinking of using Dropbox but want to see if it can be done in iCloud. Any ideas on getting this to work? Or is iCloud really only for syncing amongst devices from the same user?