I recently completed my all steel Kahr 9mm collection with the purchase of a T9. Online search for holsters revealed few options, so I dug around my holster drawer. I found the Desantis Inside Heat holster I use when I carry my K9.
Sonofagun----it fits. Not only does it fit, the holster retains the pistol very well. I can turn it upside down and the pistol doesn't fall out. As a bonus, my MK9 also fits it. My Kusiak leather holster for my MK9 will accept all three also, but retention on the K9 and T9 is pretty minimal.
The ONLY downside to the Inside Heat is the bulk at the mouth of the holster. I suppose that's why it retains so well.
Still, the holster problem is solved.