This week's Steam marketing message has word that Steam will be the exclusive online distributer of S.T.A.L.K.E.R.: Clear Sky, that they are now selling an arcade-style shooter called Bullet Candy, and that the Team Fortress 2 update including the new Goldrush map and new medic achievements is expected next week. In other Valve-related news, Eurogamer has word not to expect Portal 2 this year, not that we knew of any such expectation. They have word from Doug Lombardi: "I think that when you hit something like that, you have two choices: you can quickly replicate it and stick it out there - do the opportunistic thing and cash in on it; or you can do the crazy thing like we did after Half-Life was so successful and go off and try and say, 'Okay, that was revolutionary, so its successor has to be equally as revolutionary.'"