Well its nice to hear that its working for some of you guys, but no luck for me.
I removed the email account in WLM and re-installed many times without success.
The server URL I have in my WLM is 'http://mail.services.live.com/DeltaSync_v1.0.0/sync.aspx'
But I keep getting the message:
'The sign-in name you entered doesn't exist or your password is incorrect'
I am using the same ID and password via the web on officelive and it works fine!
Anyway, I am trying to get some help on this from Microsoft support.