In your article you mentioned:
I define a "mousegun" as a handgun that weighs less than 16 ounces empty, and/or will fit easily in a front pants pocket.
The ppk weighs 20 ounces, so it's over on your cirteria, but it fits in a front pants pocket of the jeans just fine.
The Kahr PM9 and the Ruger LCP (.380acp), or a Seecamp .380 also seem to me to be fine pocketable mouseguns.
A mousegun is not suitable for engaging bad guys at long distance. Mouseguns are weapons of last resort, meant to be used really close up and personal. The purpose of a mousegun is simply to give you an edge - a chance to get out with your life. Sights are rudimentary, and mouseguns are not tack drivers.
My Kahr PM9 weighs just 16 ounces, and fits in the front pocket, so it does meet your criteria above in your article and it can be fired accurately and with speed at longer ranges out to 45 feet. Thats much further than a mousegun should be used for, but shows some mousers are very capable of SD at more than just bad breath distances.
My Walther ppk/s can do 40+ yds with extreme accuracy, at least as accurate as my glock 26 or 19 if I do my part, which isn't that difficult with some practice.
The Kahr PM9 and Walther ppk and ppk/s are carried as they are concealable pocket mousers and both can extend the ranges of accurate SD fire out to quite some distance when required, and are not just belly blasters like the Seecamp or Kel-tec 32/380's.
In other words, you can have the best of both worlds with the two mousers I have mentioned. Pocket concealable, light enough to carry everyday, even in the 118 degree temps of the summer out here, and capable of being used effectively at quite a bit more range than one would expect from a mouser.
Brownie