I doubt they've hit the U.S. in big numbers yet. Basically, it's a full-size version of the compact P-07, so its a bit bigger (and, as you note, a slightly larger capacity). (Sort of like the SP-01 compared to the P-01.) It's probbly more pleasant to shoot in .40 than the P-07
I wouldn't expect to see any in gun shops for a couple of months, if then.