I brought an iPad, my laptop and my iPhone - they only took my iPhone when i entered the country - or, actually, they forgot, and I gave it up later on the trip, as I didn't want to get in troubles when leaving.
I could easily have left many devices there, with information etc.. In terms of communication devices, not so sure. There's absolutely no wifi in the country, and satellite devices are large, afaik.
I was war driving with my iPad in Pyongyang, searching for wifi.. NO wifi was detected, at all. Pretty interesting.
I lend my iPad to one of the guides for a week - the guide saw Breaking Bad Season 1 and heard Beatles and U2 :-) and even brought it home at night.
Give them 5 years to think about it, and might change their minds.
i'm dubious that's what they _actually_ believe in their hearts. They might have to say so on the outside, because saying otherwise is dangerous (you never know who is listening, or who might dob you in).
As for what the average North Korean actually thinks, it's hardly relevant. They act like they believe the fascist propaganda.