My iPhone shows that Messages is using 2.8GB of data, Safari is using 715MB, Facebook 657MB. 1. How is Messages using that much space? Is this amount based on every photo and video sent to me? Do I need to delete all of my Messages to free this space up? OR is there some other way of doing this? 2. Anyone know if Safari using 715MB and Facebook using 657MB sounds about right? Is that the size of the apps? Thanks.