I sometimes wish for a "smaller" pistol than my G26. I took a look at the specs, however, and other than being thinner, there is not much difference between the G26 and the thinner competition:
G26 6.3 x 4.2
PPS 6.3 x 4.4
Taurus 709 6.2 x 4.5
PF9 5.9 x 4.3
The micro 9mm's are smaller, but have other issues:
PM9 5.6 x 4.3 (I've owned two, lots of issues)
R9 5.2 x 3.7 (too expensive, not +P compatible, mag release on heel, no slide lock open when empty, etc)
So, for the extra 0.25 or so in width, you get Glock reliability and extra ammo capacity. And, you can reload with a 15- or 17-round mag. Good trade-off, IMHO. Think I'll stick with my G26!
PS - I do hope they make yours right!