Fable III PC To Spearhead Another Microsoft-Led PC Push?

Accurate or not, there's a perception amongst enthusiasts that Microsoft doesn't put enough oomph into its support of PC games. It's a PR battle that the publisher will have to fight with the PC release of Fable III, and if another leaked internal Q&A document obtained by Kotaku is legit, the Lionhead-developed RPG will be a sign that another push--a "no, for serious" push--is coming in the near future.

The question asked in the document is quite pointed, asking if Fable III will signal a meaningful "reinvestment" by Microsoft in the PC realm. It goes on, then asking if this push will be different than others.
 

The response? It's a long one: "In terms of revenue, Windows is far and away the largest gaming platform in the world, so it's an incredibly important part of Microsoft's business. From core games like Fable III to casual, social and Facebook titles, more gaming happens on Windows than anywhere else.   

== TEASER =="Windows 7 is a world-class gaming platform, and you can bet Microsoft has a vested interest in using it as a platform for amazing first party content. Fable III on Windows as well as Xbox 360 this holiday is a great first step, and we'll have more news for you later this summer." (Emphasis added.)

Before E3 2010, Microsoft announced plans to offer day-and-date releases through Games on Demand for Windows, in addition to building up its lacking back-catalogue of non-Live games. It's a step in the right direction, for sure, but it's still no Steam. 
 
But what is this great summer surprise? The published portion of the Q&A didn't have the natural follow-up, not that Microsoft would spoil the mystery beforehand anyway.