As far as the cell phone popper, why bother? Derringer type pistols are notoriously inaccurate and since you have only 2 shots, whats the point. Then, me being me, i'm going to look at the cost aspect. If i'm spending almost $400 on a gun, I will opt for something that might actually do its job and have a clip of at least 6 shots.
Now, as for all the anti gun culture folks, simply put, shooting is fun. At one point in my life, I had many visitors from many parts of the world, Europe, UK, Denmark, South America, Japan, Australia etc... they all wanted to go shooting while here. After a few days at the ranch, most were fully smitten with the experience. They all wished they had the opportunity to own guns at home with the ease we do. They were each trained in the safety and proper use of several weapons and then after a few rounds of practice, allowed to have at it.
The thing that does scare me about the US, are the total idiots, mostly city dwellers or 'suits' that have no clue about the safe use and the how/when aspects of self defense. Those folks are the ones that end up getting in trouble from misjudging things or hesitation. I have actually witnessed an older woman fumbling around in her purse for her gun and then waving it at "a parking lot hood" to attempt to scare him off. He went right to her, took it and left with it. Never ever touch a concealed gun unless you are prepared to use it correctly.