I don't see this in the settings, but you really want to have the option of restricting syncing and uploading to only wifi and/or a limited amount of ceIlular network used. I unintentionally ended up using >1GB of data yesterday from my android phone. I only realized what was going on when my OS alerted me. Since this was an initial sync, if I hadn't been alerted I might have used 10s to 100s of GB of data. Yikes!
