Did u try disabling iCloud syncing your contacts ? That worked for me they reappeared it seems to be working fine now for me but I freaked at first to
Pretty much all my backups are gone. I cant find a single one. I have no clue how they were erased.
I'm running lion and I tried looking in library/application support/mobilesync/backup/
but the folder is empty. if I go into itunes>prefrences and click on devices theres no backups.
I even checked my external hdd for my old computer. I did a full time machine copy to this external and theres not even a mobilesync folder on there. It makes no sense, I mean I bought this MBA around the same time I switched back to my iphone 3gs but I couldn't have gone 2 and a half months without syncing my phone.
I cant believe I can not find one backup. I tried restoring from the backup on iCloud but its basically the state my phone was in right after I upgraded to iOS 5.