I love the 10mm. I'm developing an AR upper for it. Star had its MegaStar (good pistol but HEAVY. Glock still catalogs a full-size and compact. Very good pistols. My personal 10mm is a 1911, of course, but I wouldn't kick a Glock 20 out of my bed. I may remember others, but not at this moment. The Bren Ten (CZ75-type) is the daddy of ALL the pistols. Damn good cartridge with enough legwork already done to  keep it up there with the top choices. This rim diameter (10mm, 40 S&W, 357 SIG) cannot be owned without at least one 10mm, especially on the 1911 platform. If I step back away from the 10mm, it's a 41 AE. The 10mm has an interesting history too, for those who enjoy reading up on such things.

I'm not a big 1911 guy, but I'd thought that a good gun would be one of those 1911's that are full size, except for the shorter butt. The barrel is probably down inside your pants so barrel length does not effect concealment, only the butt of the gun that sticks out to push against your shirt or jacket.

Try a Glock 36 and see what you think.

I agree that 10 is a great round, but I ended up deciding to get 45's for the same reason as Squib.

I think the FBIs adoption and then abandonment of the 10 killed it off, which is too bad. A lot of the 10 I have seen lately also looks like it's loaded so light that a 40 Short and Whimpy would be just as good.

In addition to the Glocks, Bren Ten and Smith and Wesson 10 series I thought that CZ made a 10. There were also revolvers made in 10mm. HK has a subgun in 10mm (which seems like a great idea). I don't know if they were ever available to civilians. Someone used to make an AR 10 upper, I think (I'd guess Olympic Arms) and my friend (who is a 10mm nut) says he had a 10mm Thompson style submachinegun in his hands once. He still bitches about not buying that.