Hey all, glad to see you've been able to help out other users on this
If you have any questions I am now monitoring this discussion so I'll see any replies.
As others have said though, iCloud is completely different on iOS 8 and Yosemite so there may be issues. Also, as with all beta OS's from Apple, they use different container / servers than their production systems so syncing will not function between beta and non-beta operating systems. The same thing happened last year with iOS 7 and Mavericks.
As always, keep us in the loop if you encounter any other issues with 1Password on the public beta.