Jason Snell, Six Colors:
When I’m traveling with only my iPhone and iPad, I can record audio on an external device—an SD-card recorder from Zoom, usually—but how do I get those files onto my iOS device? iOS can’t see the contents of a standard SD card.
It’s still a little bit silly that, now that iOS has a file-management app, you still can’t plug in a mass storage device via a USB adapter and copy files off of it directly.
Apple even makes an SD card reader for iOS devices. It just seems downright wrong that it only allows you to import photos to your camera roll. Clearly a connected SD card ought to show up as a source in the iOS 11 Files app, right?
To me, the inability of iOS to handle external drives, SD-cards, etc., is a barrier to an iPad becoming a first class computing citizen.