I don't find this interesting or cool; it's pretty disgusting and immoral for someone to spend their time 'hacking' weapons and then publishing an article detailing their work.
Well, it's probably at least lame. All this kinda crap is just some guy who had a free weekend and happens to have a decent podium to speak about it on. Clearly the device itself is useless because it's the opposite of what you want - something inconspicuous.
Unstated major premises:
1. Weapons are inherently bad.
2. Modifying something bad is bad.
3. Publishing how to do bad things is bad.
Call me crazy, but I don't agree with any of those.