Necromancer Games forums that Frog God Games is live. You can't buy Slumbering Tsar yet, but they have a place-holder page up.
Ha, and I love this from the About Us page:
"We won't fill your players coffers with millions of gold and powerful magic items either, at least not without great efforts. Our encounters won't be "balanced" to make sure no one dies, and a 3rd level monster may or may not have 50.2 gp (like its supposed to in certain rule books). Death will be frequent, but fair, and players who fail to use their heads will surely lose them."