I'm keen on these drives as I have 6 iOS devices in my house (for four people, which is crazy, but there it is) so it would be sure useful for trips, etc without having to get bigger storage capacities for everyone. (Which is why I happened to read about some of the problems with the passthrough and encrypted networking).
Other than the passthrough issues, how do you like it? Is there a way to grab movie files off the drive and save them onto local storage of a media player (Apple's or third party)? That is, do you HAVE to stream content off it or can you move the file onto the iOS device for later local playback (and tehn deletion)?
Do any apps let you export contents to the drive? For example, is there a way to save photos from your Photo app to the drive? Let us know how the internet passthrough works out for you. Good luck!