I haven't been signing in to the live mesh client at work this week (and it doesn't remember my username/password) so it's not auto sign in.
I got home yesterday to find some files I'd edited at work were listed in my news feed, I thought I must have signed in and just completely erased it from memory. But today I made sure i didn't sign in, and sure enough, files have been updated.
So I just signed out of the client at home, threw a file into one of my synced folders, logged into the online desktop and there it is (took about a minute to appear though).
WTF?
Is this supposed to happen?