Well, I made my choice today. I ended up with the Kahr CW40. The P290 was too small, the G26/27 were too thick and the Beretta Nano did not have the slide lock.
I went with the .40 for one main reason, ammo availability. I can find .40 S&W all day, 9mm is nowhere to be found.
Now just gotta take her to the range.