No, not the case for me. The contact is not displayed in a different order, e.g. under LastName or FirstName. It is gone from my contacts list on the phone. Searching for it gives no match. It disappears directly when I try to edit the contact on the phone. From the phone I open an exchange contact - no linking to Facebook or Linked-in etc. just a contact I only have in My Contacts on my mailbox account on the exchange server not an account from the GAL. I add an extra number e.g. mobile phone #2. - Gone! The contact is still on the exchange server but my edited number is not on the server. I have to edit the exchange contact on the server from outlook contacts and then sync the phone and then it is back. (But the number added first, when editing on the phone, is gone).