@anderl, which one is that? I am only aware of 3 others. Fibonacci, Alpha T, and Flower.
I am not sure if these are included but ltcgear.com has some stuff and also sluicebit was supposed to be making one as well.
I think ltcgear is fibonacci, but please correct me if I'm mistaken. In any case, they have a new website and they are updating their followers on their progress. They have shares or something now, but the hardware is not yet ready.