I thought I had fully synced before upgrading as the pop up reminders make it clear data will be lost if not performed. I even transfered all of my apps to itunes but obviously did not check thoroughly enough in outlook to confirm my contacts were synced. AFter completion of the upgrade, all of my contacts are missing from my iphone and there are none in my outlook file either. I just upgraded to a new PC so most are on my other laptop but is there a way to recover the contacts wiped from my iphone while I still have the option to 'restore' in itunes? Any insight from those who would know?