I think this product is less about "expand your iPhone storage"...
... and more about "clear a bunch of photos and videos off your iPhone during vacation"
That's what I would use it for.
I'd also use it to quickly load a bunch of movie files from my computer onto the flash drive to watch on my iPhone on an airplane. And for those 2 hours you're watching the movie... who cares that you have to use a separate app? Once the movie is playing fullscreen... you forget you're in a separate app.
At least this device give you options... options that Apple doesn't really offer natively.
I'd love for Apple to support USB On-The-Go... but I doubt we'll see that in our lifetimes
EXACTLY!