This seems like it could be kind of important for the PC gaming community. Today, Valve helped deploy 5 Free to Play titles through its Steam distribution service, something that previously could not be done because the infrastructure to support microtransactions for games outside of the ones they manage directly (most notably Team Fortress 2). However, it would seem as if they are leveraging the much toted TF2 hat technology in order to support in-game payments across a multitude of Free to Play titles. I think that consolidating the fairly fragmented F2P market within the Steam ecosystem is a move that will further bolster the PC market in the end, if only from a business standpoint. The current Free to Play games available on Steam are Spiral Knights (a fun little zelda/diablo like game with a great visual aesthetic), Forsaken World (a high fantasy free World of Warcraft clone), Global Agenda: Free Agent (a class-based shooter/pseudo-MMO hybrid in a similar vein as Tribes), Champions Online (superheroes hooray!) and Alliance of Valiant Arms (I have no sense at all of what this game is, give it a try and let me know). Presumably, more will be coming down the line but they seemed to get a good variety genre-wise for the initial deployment. The prospect excites me.