USP9 is correct but according to Sandy (CEO of NAA) they will be resuming production shortly. They had a falling out with Kahr and have already found a new supplier but Sandy wants to make sure everything is 100% before they start shipping. You can read all about it on the NAA message boards and you can even email Sandy personally with any ? and he will respond quickly. I wrote him a email last Sat afternoon and Sunday morning I found his reply, now that's customer service.
As far as the Guardians go I highly recommend them. I have a 32 acp and a 380 acp. They both have been 100% flawless and I prefer them over the Seecamps for several reasons. The additional weight and size is not a negative as some want to claim they are a positive to help control recoil and to properly grip the gun. The gun is still so small that it disappears in the front pocket. The Guardian has mags available with finger extensions, this allows a full extra finger to be applied to the pistol which greatly helps in firing the gun. The Seecamp is very picky about the rounds it will accept, all three of the approved rounds are expensive SD ammo, not exactly what I like to practice with, although I agree you should practice with the ammo you carry, just not all the time!! The Seecamp has the European mag release which I simply don't care for, I prefer the mag release to be in a more traditional position. These are just a few of my personal opinions regarding the two. I won't argue the Seecamp is a very high quality firearm, but I believe you can get to small in a SD pistol. I won't even go into how I feel about the KelTecs. Just do a search through the gun forums and ask yourself if you are willing to trust your life to a brand with so many malfunctions. I'm not trying to put down anybody's gun choices, we all have to choose a firearm that we feel bests suits our own needs, the above are simply my opinions and what I have found to be true in my own experiences.