Rockstar has confirmed that Red Dead Redemption is not coming to the PC. In a Q&A on the company's blog, Rockstar explains, "All we can say is that whenever it is viable (technically, developmentally and business-wise) for us to release a game for PC (or any other particular platform) – we will and we usually do; unfortunately, that is just not the case 100% of the time for all platforms."
The post adds, "To PC gamers, we hope that between the Grand Theft Auto titles, and the forthcoming L.A. Noire and Max Payne 3, you'll have plenty of great Rockstar action to enjoy." Just, you know, no cowboy action. Which is like, the best kind of action.