Well, I bought a Kel Tec P11 in 1996 and have been quite happy with it, prefer it to the alternatives from Taurus, Kahr, Skyy, Glock (though the G26 was out when I got the KT and it's not really in that size class), et al. Ruger is soon to jump on the PF9/P11/709 etc 9mm subcompact band wagon. They're running ads about it, but I don't think it's released, yet. Now, maybe that's a "re-introduction" to the concept, but not for me. I liked the little P3AT, too, and my Grendel way before Ruger jumped on the band wagon...oh, sorry, "re-introduced the concept".
BTW, my Kel Tec has over 11,000 rounds fired through it and hasn't blown my hand off, yet. About 500 of those total have been +P rounds. It still shoots to POA 3.5" at 25 yards accurate. I don't need the "re-introduction" of the Ruger. I have a perfectly good firearm in that concept, thanks.
I have 7 Rugers, love my Rugers, just calling a spade a spade.