When I try turn on iCloud Photo Library Beta on my iPad I get the following warning: PHOTOS SYNCHED FROM ITUNES WILL BE REMOVED Synching photos via iTunes is not supported when icloud photo library is turned on 274 photos will be removed If I say its OK to remove photos where are they going to be deleted from and will they be lost forever? From the iPad? From iPhoto on my Mac. I don't want to turn this on until I know what's happening to these 274 photos? Thanks.