That may be Tumbler. The problem to me seems that when you stagger releases, you lose a lot of the impulse buying that would occur if the game were launched simultaneously. Take a game like Assassin's Creed. The hype machine really worked at getting that game more sales than it would have otherwise. PC gamers, on the other hand got to watch as the hype died away and the game was made to stand on its own merits long before it ever shipped on PC. The result was that it sold poorly on PC.
When I heard about Assassin's Creed for the PC, I was stoked. But by the time it shipped, I had heard so much negativity about (some warranted, but a good deal of it wasn't) that I wasn't really all that excited about it. I got it on a discount from Gogamer.com, and while I enjoyed it, all of the incessant negative comments about it sort of tainted my view of it to the point that I was noticing minor flaws I might have otherwise ignored had it not been dissected and over-analyzed countless times on the internet.
Me, I think they are ensuring poor sales on PC by staggering releases like this, but of course the old scapegoat of piracy will be blamed.
"We live on a placid island of ignorance in the midst of black seas of infinity, and it was not meant that we should voyage far."
"Universal compassion is the only guarantee of morality."