I was looking at my Kahr PM9 yesterday. I finally brought it back from Chicago where it has been at a buddies since I had to do a turn and burn drive. Truth is, I just don't carry it much anymore - If I can conceal the boatanchor that is the 92 comfortably, then why accept a diminished capacity, difficult to shoot pistol?
Originally, I bought it as a pocket pistol-like piece, but Claude W is right: if a "pocket gun" weighs more than 14oz, it isn't a pocket gun.
And that's where I scratch my head a bit...
If you're going to carrying an EDC pistol like a 43X in AIWB or something, then you could probably carry any full size pistol.
If you're planning on pocketing a pistol like a 43X, then, well, you probably need to re-evaluate that idea.
I keep coming back to Mas' concept of a layered defense and the whole "Rule 1 is have a gun". If you can't carry something on the hip, carry something workable in the pocket. Layer up from there...
The hardware options are nice - I'm sure Sig and Glock will sell these things like hotcakes - but I can't help but thing that mindset trumps a hardware solution.