I am trialling Yosemite and trying to set up OmniPresence. OmniPresence starts up and appears fine, but when it is setting up syncing the server compatibility check fails every time. In my experience this stage can be a little hit and miss in Mavericks, but should it work in Yosemite?
In short is my failure to get OmniPresence working a Yosemite problem or something else?
What server are you attempting to sync to? Are you using an Omni Sync Server account, or are you using some other WebDAV space (such as your own server, or something hosted for you by a third party)?
I am experienced problems with OmniPresence on Yosemite as well.
The custom webdav I use in OmniFocus 2 does not work for OmniPresence.
Neither does my OmniSync account.
Hopefully there will be a compatibility update soon.