Bad developers do have that power. But best practice is to use a SyncAdapter, which works very similarly. Actually, one of the biggest savings comes from apps

Bad developers do have that power. But best practice is to use a SyncAdapter, which works very similarly. Actually, one of the biggest savings comes from apps all syncing at about the same time... firing up the cell modem is expensive, cheaper to do a bunch of transfers at once than spread out over time.