So I understand the function of the cache that builds up and shows as "Other". However with no way to purge this material from the device, it's becoming quite an embarrassment. Anyone believe we'll see an option buried within settings to purge some of this in iOS 8? A backup and restore is a pathetic solution to a simple problem. My phone won't even let me update to 7.1 because I need an additional 1.9 Gig of free space. Between all of the iMessage images I can't seem to locate (I don't want to delete entire threads) and my Exchange Mail account building up crap over time, I can't clear this from the phone. Any reason Apple shouldn't be providing this option within the OS settings?