Reports claim that iOS users are facing come problem during iCloud Sync. Apple’s support forums show that a there is a serious bug in the way iCloud syncing is handling iWork documents. The files are getting deleted upon a fresh sync, leaving no way to recover the documents.
Some desktop users have reported recovering their work from the folder, which is found in the hidden (in Lion) user Library under the name “Mobile Documents” and/or “Mobile Documents.delete.(date)”.
The problem which mobile iWork users are facing is during the iCloud sync, all copies of the file on all computers or devices that have been synced are deleted, according to reports.